🤠 Xiao Expansion board drag & drop testing uf2 flash files

Products & Technology XIAO
#1

Hi there,

So You have bought a Xiao Expansion Board…
Where do You begin?
Read the Wiki it’s loaded with Hints and Tips… Examples that may or may NOT run unless you prepare your environment exactly like the demo? WOW that’s a gamble IMO. Two alike development systems in the same room, let alone across the Globe.

I propose to make this thread an area you can get a Drag & Drop Flash file to test your hardware and give you confidence that the hardware and Basic code works!

With so many IDE choices ,BSP files, Component Libraries and Wiki’s that are not maintained even Software support that has gone by the way of the Dodo-Bird… The Xiao Nrf52840 MCU in either (BLE or Sense)* Variants is a part of this Salad.

To start THIS: Basic SD Card Reading. uf2 flash file, it outputs to the Serial port the type of SD and verifies the hardware works. Simple Drag & Drop ,basic easy to incorporate, follow and understand.

Here is what you need.
(picture) Xiao Expansion Board, a Xiao Nrf52840 * and an SD card also pictured are PINS and battery optional.

20240324_153121
20240324_1531211920Ă—1080 82.1 KB

(SEEED is penny wise :money_mouth_face: and pound foolish :crazy_face:) **Soapbox ON!!**The pins do NOT come with the Xiao anymore. Can you imagine? You order the Xiao MCU, the Board and an SD card, Only to be disappointed when it arrives that you must now wait and order the M’F’N Pins… Blows the whole experience(Note1), C’mon MAN! :face_with_symbols_over_mouth: Even a Third Grader’s HATE this!! :joy:
But I digress…

SD Card is (32Gig Max.- Fat32 formatted with 32K Allocation Unit size.)

    • Install the Xiao on the Board.
    • Install the SD card (bottom Up & Pushed IN)
    • Put in Bootloader mode
    • Drag & Drop the uf2 flash file onto the Xiao.

Open a serial monitor, 9600 Baud 8N1. You should see the same serial output as Above with similar SD info contained if everything is working correctly.

20240324_153431
20240324_1534311440Ă—2560 146 KB
20240324_153243
20240324_1532431440Ă—2560 128 KB
20240324_153314
20240324_1533141440Ă—2560 143 KB

Be sure to push it all the way in, it clicks and let go.
20240324_153305
20240324_1533051440Ă—2560 130 KB

This is code from the Examples compiled using both BSP for Xiao 1.1.8 and 2.9.2 just for clarity.

This is the serial output…My SD was used in the Gif demo so there are files present.

Hello Seeed Studio SD card Checker for Xiao Expansion Board....

Initializing SD card...Wiring is correct and a card is present.

Card type:         SDHC
Clusters:          954095
Blocks x Cluster:  64
Total Blocks:      61062080

Volume type is:    FAT32
Volume size (Kb):  30531040
Volume size (Mb):  29815
Volume size (Gb):  29.12

Files found on the card (name, date and size in bytes): 
SYSTEM~1/     2024-03-13 00:03:24
  WPSETT~1.DAT  2024-03-13 00:03:24 12
  INDEXE~1      2024-03-13 00:03:28 76
TEST.TXT      1980-01-01 00:00:06 1048576
FOO.TXT       1980-01-01 00:00:02 13

This is the compiler output…so you can build your own and compare.

FQBN: Seeeduino:nrf52:xiaonRF52840Sense
Using board 'xiaonRF52840Sense' from platform in folder: C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8
Using core 'nRF5' from platform in folder: C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8

Detecting libraries used...
C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\arm-none-eabi-gcc\9-2019q4/bin/arm-none-eabi-g++ -mcpu=cortex-m4 -mthumb -c -g -Werror=return-type -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -w -x c++ -E -CC -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_Seeed_XIAO_nRF52840_Sense -DARDUINO_ARCH_NRF52 -DARDUINO_BSP_VERSION="1.1.8" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x2886 -DUSB_PID=0x8045 -DUSB_MANUFACTURER="Seeed" -DUSB_PRODUCT="XIAO nRF52840 Sense" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=0 -DCFG_LOGGER=0 -DCFG_SYSVIEW=0 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/Core/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/DSP/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/hal -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/mdk -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/soc -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/src -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/Source/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/GCC/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/CMSIS/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/SEGGER -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/Config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8/libraries/Adafruit_TinyUSB_Arduino/src/arduino -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\variants\Seeed_XIAO_nRF52840_Sense C:\Users\Dude\AppData\Local\Temp\arduino\sketches\9E36D697D862A1D186AAD026CAA03BFF\sketch\SD_basic_Test.ino.cpp -o nul
Alternatives for SPI.h: [[email protected]]
ResolveLibrary(SPI.h)
  -> candidates: [[email protected]]
C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\arm-none-eabi-gcc\9-2019q4/bin/arm-none-eabi-g++ -mcpu=cortex-m4 -mthumb -c -g -Werror=return-type -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -w -x c++ -E -CC -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_Seeed_XIAO_nRF52840_Sense -DARDUINO_ARCH_NRF52 -DARDUINO_BSP_VERSION="1.1.8" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x2886 -DUSB_PID=0x8045 -DUSB_MANUFACTURER="Seeed" -DUSB_PRODUCT="XIAO nRF52840 Sense" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=0 -DCFG_LOGGER=0 -DCFG_SYSVIEW=0 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/Core/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/DSP/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/hal -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/mdk -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/soc -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/src -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/Source/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/GCC/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/CMSIS/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/SEGGER -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/Config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8/libraries/Adafruit_TinyUSB_Arduino/src/arduino -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\variants\Seeed_XIAO_nRF52840_Sense -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\libraries\SPI C:\Users\Dude\AppData\Local\Temp\arduino\sketches\9E36D697D862A1D186AAD026CAA03BFF\sketch\SD_basic_Test.ino.cpp -o nul
Alternatives for SD.h: [[email protected] [email protected]]
ResolveLibrary(SD.h)
  -> candidates: [[email protected] [email protected]]
C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\arm-none-eabi-gcc\9-2019q4/bin/arm-none-eabi-g++ -mcpu=cortex-m4 -mthumb -c -g -Werror=return-type -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -w -x c++ -E -CC -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_Seeed_XIAO_nRF52840_Sense -DARDUINO_ARCH_NRF52 -DARDUINO_BSP_VERSION="1.1.8" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x2886 -DUSB_PID=0x8045 -DUSB_MANUFACTURER="Seeed" -DUSB_PRODUCT="XIAO nRF52840 Sense" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=0 -DCFG_LOGGER=0 -DCFG_SYSVIEW=0 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/Core/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/DSP/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/hal -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/mdk -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/soc -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/src -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/Source/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/GCC/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/CMSIS/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/SEGGER -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/Config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8/libraries/Adafruit_TinyUSB_Arduino/src/arduino -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\variants\Seeed_XIAO_nRF52840_Sense -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\libraries\SPI -Id:\Arduino_projects\libraries\SD\src C:\Users\Dude\AppData\Local\Temp\arduino\sketches\9E36D697D862A1D186AAD026CAA03BFF\sketch\SD_basic_Test.ino.cpp -o nul
C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\arm-none-eabi-gcc\9-2019q4/bin/arm-none-eabi-g++ -mcpu=cortex-m4 -mthumb -c -g -Werror=return-type -mfloat-abi=hard -mfpu=fpv4-sp-d16 -u _printf_float -std=gnu++11 -ffunction-sections -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -w -x c++ -E -CC -DF_CPU=64000000 -DARDUINO=10607 -DARDUINO_Seeed_XIAO_nRF52840_Sense -DARDUINO_ARCH_NRF52 -DARDUINO_BSP_VERSION="1.1.8" -DNRF52840_XXAA -DUSBCON -DUSE_TINYUSB -DUSB_VID=0x2886 -DUSB_PID=0x8045 -DUSB_MANUFACTURER="Seeed" -DUSB_PRODUCT="XIAO nRF52840 Sense" -DSOFTDEVICE_PRESENT -DARDUINO_NRF52_ADAFRUIT -DNRF52_SERIES -DDX_CC_TEE -DLFS_NAME_MAX=64 -Ofast -DCFG_DEBUG=0 -DCFG_LOGGER=0 -DCFG_SYSVIEW=0 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/Core/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\tools\CMSIS\5.7.0/CMSIS/DSP/Include/ -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/hal -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/mdk -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/soc -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/nrfx/drivers/src -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/nordic/softdevice/s140_nrf52_7.3.0_API/include/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/Source/include -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/GCC/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/freertos/portable/CMSIS/nrf52 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/SEGGER -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5/sysview/Config -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8/libraries/Adafruit_TinyUSB_Arduino/src/arduino -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\cores\nRF5 -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\variants\Seeed_XIAO_nRF52840_Sense -IC:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\libraries\SPI -Id:\Arduino_projects\libraries\SD\src C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\libraries\SPI\SPI.cpp -o nul
Alternatives for Adafruit_TinyUSB.h: [Adafruit TinyUSB [email protected]]
ResolveLibrary(Adafruit_TinyUSB.h)
  -> candidates: [Adafruit TinyUSB [email protected]]
***Brevity Edit***
Zip created at C:\Users\Dude\AppData\Local\Temp\arduino\sketches\9E36D697D862A1D186AAD026CAA03BFF/SD_basic_Test.ino.zip
Multiple libraries were found for "SD.h"
  Used: D:\Arduino_projects\libraries\SD
  Not used: C:\Users\Dude\AppData\Local\Arduino15\libraries\SD
Using library SPI at version 1.0 in folder: C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\libraries\SPI 
Using library SD at version 1.2.4 in folder: D:\Arduino_projects\libraries\SD 
Using library Adafruit TinyUSB Library at version 1.7.0 in folder: C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8\libraries\Adafruit_TinyUSB_Arduino 
"C:\\Users\\Dude\\AppData\\Local\\Arduino15\\packages\\Seeeduino\\tools\\arm-none-eabi-gcc\\9-2019q4/bin/arm-none-eabi-size" -A "C:\\Users\\Dude\\AppData\\Local\\Temp\\arduino\\sketches\\9E36D697D862A1D186AAD026CAA03BFF/SD_basic_Test.ino.elf"
Sketch uses 53776 bytes (6%) of program storage space. Maximum is 811008 bytes.
Global variables use 8012 bytes (3%) of dynamic memory, leaving 229556 bytes for local variables. Maximum is 237568 bytes.
Performing 1200-bps touch reset on serial port COM20
Waiting for upload port...
Upload port found on COM21
"C:\Users\Dude\AppData\Local\Arduino15\packages\Seeeduino\hardware\nrf52\1.1.8/tools/adafruit-nrfutil/win32/adafruit-nrfutil.exe" --verbose dfu serial -pkg "C:\Users\Dude\AppData\Local\Temp\arduino\sketches\9E36D697D862A1D186AAD026CAA03BFF/SD_basic_Test.ino.zip" -p COM21 -b 115200 --singlebank
Upgrading target on COM21 with DFU package C:\Users\Dude\AppData\Local\Temp\arduino\sketches\9E36D697D862A1D186AAD026CAA03BFF\SD_basic_Test.ino.zip. Flow control is disabled, Single bank, Touch disabled
Opened serial port COM21
Starting DFU upgrade of type 4, SoftDevice size: 0, bootloader size: 0, application size: 53784
Sending DFU start packet
Sending DFU init packet
Sending firmware file
########################################
########################################
##########################
Activating new firmware

DFU upgrade took 3.8244261741638184s
Device programmed.

here is the Code contained in the uf2 files( drag and drop to test your SD card & drive)…

//----------------------------------------------------------------------------------------------
//BSP : Seeed nRF52 Borads 1.1.1 or 2.9.2 both work.
//Board : Seeed nRF52 Borads / Seeed XIAO nRF52840 Sense
// 03/24/2024
// built by PJG for a standalone uf2 flash file.
//----------------------------------------------------------------------------------------------

/*
  SD card test

  This example shows how use the utility libraries on which the'
  SD library is based in order to get info about your SD card.
  Very useful for testing a card when you're not sure whether its working or not.

  The circuit:
    SD card attached to SPI bus as follows:
 ** MOSI - pin 11 on Arduino Uno/Duemilanove/Diecimila
 ** MISO - pin 12 on Arduino Uno/Duemilanove/Diecimila
 ** CLK - pin 13 on Arduino Uno/Duemilanove/Diecimila
 ** CS - depends on your SD card shield or module.
 		Pin 4 used here for consistency with other Arduino examples
  created  28 Mar 2011
  by Limor Fried
  modified 9 Apr 2012
  by Tom Igoe
*/
// include the SD library:
#include <SPI.h>
#include <SD.h>
//#include <pins_arduino.h>

// set up variables using the SD utility library functions:
Sd2Card card;
SdVolume volume;
SdFile root;

// change this to match your SD shield or module;
// Arduino Ethernet shield: pin 4
// Adafruit SD shields and modules: pin 10
// Sparkfun SD shield: pin 8
// MKRZero SD: SDCARD_SS_PIN
//const int chipSelect = PA4;
// SEEED Xiao Expansion Brd = 2
//***********************************************************************************
// SCK : D8, MISO : D9, MOSI : D10, GND : GND, VCC : 3V3
const int chipSelect = 2;
//***********************************************************************************
#define SD_CS 2          // SD card chip select
void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }
// LED intialization
  pinMode(LED_RED, OUTPUT);
  pinMode(LED_GREEN, OUTPUT);
  pinMode(LED_BLUE, OUTPUT);
  digitalWrite(LED_RED, HIGH);
  digitalWrite(LED_GREEN, HIGH);
  digitalWrite(LED_BLUE, HIGH);

  Serial.println("Hello Seeed Studio SD card Checker for Xiao Expansion Board....");

  Serial.print("\nInitializing SD card...");

  // we'll use the initialization code from the utility libraries
  // since we're just testing if the card is working!
 // if (!card.init(SPI_HALF_SPEED, chipSelect)) {    
if (!card.init(SPI_FULL_SPEED, chipSelect)) {
    Serial.println("initialization failed. Things to check:");
    Serial.println("* is a card inserted?");
    Serial.println("* is your wiring correct?");
    Serial.println("* did you change the chipSelect pin to match your shield or module?");
    while (1);
  } else {
    Serial.println("Wiring is correct and a card is present.");
  }

  // print the type of card
  Serial.println();
  Serial.print("Card type:         ");
  switch (card.type()) {
    case SD_CARD_TYPE_SD1:
      Serial.println("SD1");
      break;
    case SD_CARD_TYPE_SD2:
      Serial.println("SD2");
      break;
    case SD_CARD_TYPE_SDHC:
      Serial.println("SDHC");
      break;
    default:
      Serial.println("Unknown");
  }

  // Now we will try to open the 'volume'/'partition' - it should be FAT16 or FAT32
  if (!volume.init(card)) {
    Serial.println("Could not find FAT16/FAT32 partition.\nMake sure you've formatted the card");
    while (1);
  }

  Serial.print("Clusters:          ");
  Serial.println(volume.clusterCount());
  Serial.print("Blocks x Cluster:  ");
  Serial.println(volume.blocksPerCluster());

  Serial.print("Total Blocks:      ");
  Serial.println(volume.blocksPerCluster() * volume.clusterCount());
  Serial.println();

  // print the type and size of the first FAT-type volume
  uint32_t volumesize;
  Serial.print("Volume type is:    FAT");
  Serial.println(volume.fatType(), DEC);

  volumesize = volume.blocksPerCluster();    // clusters are collections of blocks
  volumesize *= volume.clusterCount();       // we'll have a lot of clusters
  volumesize /= 2;                           // SD card blocks are always 512 bytes (2 blocks are 1KB)
  Serial.print("Volume size (Kb):  ");
  Serial.println(volumesize);
  Serial.print("Volume size (Mb):  ");
  volumesize /= 1024;
  Serial.println(volumesize);
  Serial.print("Volume size (Gb):  ");
  Serial.println((float)volumesize / 1024.0);

  Serial.println("\nFiles found on the card (name, date and size in bytes): ");
  root.openRoot(volume);

  // list all files in the card with date and size
  root.ls(LS_R | LS_DATE | LS_SIZE);
}

void loop(void) {
}

SD_basic_Test.zip (101.5 KB)

Insert Video (here)dragging and dropping…LOL
How it’s made,
I compiled, downloaded & programmed the Xiao. the Code Runs and works.
I saved the File as SD_basic_Test.ino
I selected Export Compiled Binary from IDE sketch menu.
I ran the python Script in Terminal window (like this guide) From the HEX file generated.
I drag the generated firmware.uf2 file to a fresh Xiao open in Boot mode. After a short windows copy progress box PopUp closes it resets and Bob’s Your uncle.
YMMV

HTH
GL :slight_smile: PJ

The Next one will have Display and RTC as well as some BLE action. coming Up!
in the meantime if you want an LED blinker Here it is, Drag and Drop.
Xiao_RGB_test.zip (153.4 KB)
This ONLY cycles through the RGB LED on the Xiao outputs the color to the Serial port. Enjoy…(this runs on a Xiao not mounted on expansion base too, or on Battery)

Note1, I like seeed products. but I don’t get the pins thing? seems like a cheap out.
I deal with it my way. I made a socket and it’s a WIP (work in progress) I don’t need the pins then. I know of 3 cases where newbies, a student and a professor who all where impressed by seeed studio demo’s.
They ordered the parts only to be disappointed, I had to show the student how to solder. (this is a Barrier to entry for new people) I can open the package and put it in the socket and turn it on… YOU FEEL ME? either the Expansion board gets a socket or the pins should come with the MCU.

20240324_154003
20240324_1540031440Ă—2560 119 KB
20240127_174750
20240127_1747501440Ă—2560 101 KB
thumb
thumb720Ă—1280 84.8 KB
20240324_154858
20240324_1548581440Ă—2560 151 KB

but that’s just me… they are up on thingiverse btw too. Free!
Some tools I like too.
20240324_153924
20240324_1539241440Ă—2560 190 KB
20240324_011333
20240324_0113331920Ă—1080 164 KB

COM Port is non-existent after writing firmware XIAO nrf52840 Sense
Xiao nrf52840 sense no port showing
Change MIDI Device Name? (XIAO_ESP32S3)
Seeed Studio XIAO nRF52840 Problem
Uf2 offset address of Wio Tracker1110 Dev Board?
XIAO-nRF52840 not recognized in COM Ports
XIAO Expansion Board Base I2C - NoPullup/AllAdresses
How to: :disguised_face: Make a UF2 Flash file from a single HEX file for Production
XIAO BLE Sense loses COM port on code upload
#2

I will try to join the challenge

I know in SEEED defense, the soldered pins are a shipping and packaging issue cause the pins need to have that “spung” added to keep from poping the bad and poking people

also i think the headers were out of stock during the pandemic when the run was produced, i dont think it was a cost saving measure

1 Like
#3

Hi there,
Ok So now here’s another Tests the OLED Display and the RGB LED and Beeps the Buzzer.
Drag & Drop uf2 file.
(ino is included too)
Xiao_RGBDISP.zip (74.3 KB)

20240324_211254
20240324_2112541920Ă—1080 120 KB

Enjoy.
GL :slight_smile: PJ :v:

#4

Here is a almost full Monty,
Adds SD test, RTC, and some BLE LED control rolled in. :wink: :+1:
if you have a Mobile or Nrf connect for Desktop with a Nordic Dongle , Another $9 tool a must have.

20240324_012948
20240324_0129481920Ă—1080 112 KB

selftest
selftest2768Ă—1519 145 KB

Enjoy , Drag & Drop.
SelfTest_Xiao_Expansion.zip (264.3 KB)
20231029_194903
20231029_1949031440Ă—2560 224 KB

This is the Serial output


Power ON 
 
Xiao Expansion board and MCU check & Test compiled on Mar 23 2024 at 17:42:35
Processor came out of reset.

Selected MCU: nRF52840

Xiao Unit: EA52
Playing startup sound
RTC Date & Time is:3/19/24 10:17:21
Testing R G B LED - RED, GREEN, BLUE... 

Initializing SD card...Card Mounted
Card type: SDHC
Volume type is:    FAT32
SD Volume size (Gb):  29.12

Xiao MAC: BF:49:C1:6B:01:4D

Advertising Bluetooth Device
  as: Xiao EA52
Connected to central: c8:65:29:7e:60:0c // this will pop in when you connect to it.

HTH
GL :slight_smile: PJ :v:

2 Likes
#5

This one is to Test Xiao Nrf52840 Sense It checks for the IMU basic Functions

20240325_165316
20240325_1653161440Ă—2560 178 KB
20240325_165257
20240325_1652571440Ă—2560 169 KB

push_button
push_button1440Ă—2560 175 KB

Drag & Drop :cowboy_hat_face: :+1:
Displays on the OLED & Serial output, Press the User button to lower the Sensitivity to movement. The default is Very Sensitive. Code is in the Zip too.

Here’s the Serial Output

Xiao Expansion board and MCU check & Test compiled on Mar 25 2024 at 16:34:31
Processor came out of reset.

IMU GOOD
Temperature: 78.18°

When Moved it, prints the values to Serial port like the standard example and it displays on The OLED it’s “On the Move”

0.080,-0.056,1.009,-0.070,-1.610,-0.560
0.081,-0.054,1.005,-0.140,-1.610,-0.560
0.080,-0.054,1.011,0.070,-1.610,-0.490
0.083,-0.055,1.008,-0.070,-1.610,-0.420
0.082,-0.052,1.006,0.070,-1.610,-0.210
0.082,-0.055,1.006,0.140,-1.610,-0.350
0.081,-0.054,1.005,0.070,-1.470,-0.490
0.079,-0.055,1.008,0.000,-1.680,-0.420
0.080,-0.051,1.004,-0.070,-1.610,-0.420
0.080,-0.057,1.006,0.070,-1.610,-0.560
0.080,-0.054,1.007,0.070,-1.610,-0.420
0.082,-0.053,1.006,0.140,-1.400,-0.490
0.081,-0.055,1.005,0.140,-1.540,-0.350
0.082,-0.052,1.006,0.140,-1.750,-0.350
0.082,-0.056,1.005,0.070,-1.680,-0.280
0.081,-0.056,1.005,-0.140,-1.540,0.000
0.081,-0.053,1.006,-0.280,-1.540,-0.420
0.083,-0.053,1.004,-0.210,-1.610,-0.070
0.083,-0.055,1.006,-0.070,-1.750,-0.420
0.085,-0.053,1.005,-0.070,-1.820,-0.140
0.081,-0.054,1.006,-0.070,-1.610,-0.350
0.084,-0.055,1.007,-0.140,-1.400,-0.210
0.082,-0.054,1.006,-0.140,-1.610,-0.350
0.084,-0.052,1.006,-0.280,-1.610,-0.280
0.083,-0.055,1.006,0.000,-1.680,-0.210
0.082,-0.056,1.008,0.000,-1.610,-0.280

Button pushed 1.25
3.25

IMU_CAP1.zip (77.6 KB)
Unzip and Drag & Drop uf2 file on Xiao in Boot Mode :+1:

HTH
GL :slight_smile: PJ