Search found 85 matches

by bestlux
Wed Mar 06, 2019 10:01 am
Forum: Grove
Topic: Seed groove Bluetooth v3.01 Problem
Replies: 2
Views: 545

Re: Seed groove Bluetooth v3.01 Problem

Hello,
please have a look at the line of 'AT+BIND' in the command list. And send it from your computer to your Arduino then to your grove.
Links:https://www.teachmemicro.com/hc-05-blue ... mand-list/
I hope the information can help you.
by bestlux
Wed Mar 06, 2019 9:36 am
Forum: Grove
Topic: Unable to get UART Wifi V2 to work with Base Shield v2 and Arduino Uno
Replies: 2
Views: 549

Re: Unable to get UART Wifi V2 to work with Base Shield v2 and Arduino Uno

Hello,
So your real problem is that you can not upload sketches to the Arduino when plugging the wifi grove?
Do not worry, it happens to many groves because of power supply or conflict in Serial Pin, you just need to unplug it and try download again.
by bestlux
Tue Mar 05, 2019 5:30 pm
Forum: LinkIt
Topic: GSM Antenna
Replies: 1
Views: 1101

Re: GSM Antenna

Hello,
Here is the product info of its antenna. Hope the information can help you.
Image
by bestlux
Tue Mar 05, 2019 3:23 pm
Forum: Wio Series
Topic: how to OTA update a WIO LTE CATm1 tracker
Replies: 1
Views: 1065

Re: how to OTA update a WIO LTE CATm1 tracker

Hello,
I found an example code for STM32-Arduino, I guess it has a reference value for you.
https://www.stm32duino.com/viewtopic.php?t=3003
by bestlux
Tue Mar 05, 2019 10:35 am
Forum: Raspberry Pi
Topic: ReSpeaker 4-Mic Array for Raspberry Pi audio quality?
Replies: 3
Views: 1230

Re: ReSpeaker 4-Mic Array for Raspberry Pi audio quality?

Hello, my Respeaker 4 mic hat does not have such noise. But I have met the same problem on my ipad when I charge it with the unstable power supply in my school library. So I guess maybe there is some problem with your power supply. Could you please switch another one and try to see if there is still...
by bestlux
Mon Mar 04, 2019 4:10 pm
Forum: Arduino & Seeeduino
Topic: How to send gps data without USB cable connected from seeeduino lorawan to Loriot server
Replies: 4
Views: 1458

Re: How to send gps data without USB cable connected from seeeduino lorawan to Loriot server

Hello,
I'm sry for my omission that I have not considered you did not connect the USB port.
When there are SerialUsb code but the USB port is not connected, the program might be pended.
So you need to delete all of them.
Hope the information can help you.
by bestlux
Fri Mar 01, 2019 5:37 pm
Forum: Grove
Topic: Multichannel gas sensor
Replies: 4
Views: 822

Re: Multichannel gas sensor

Hello, I met the same problem as you, and I changed some of the code then data was read. I do not know why, it sounds unbelievable, but it does work. Does anyone know why? Here are my code and result: https://github.com/SeeedDocument/forum_doc/blob/bbfa7a51704889039a9e16d8f8c5d13d3753b083/image/$EWG...
by bestlux
Thu Feb 28, 2019 2:14 pm
Forum: Grove
Topic: Looking for Grove RTC example code written in C language
Replies: 1
Views: 486

Re: Looking for Grove RTC example code written in C language

Hello,
I'm sorry for not having such code. I suggest you to refer to STM32 or C51 code of ds1307 like https://github.com/ppkt/stm32f4-ds1307.
I hope the information can help.
Good Luck
by bestlux
Thu Feb 28, 2019 1:56 pm
Forum: Arduino & Seeeduino
Topic: Seeeduino Lotus sketch uploading problem
Replies: 1
Views: 795

Re: Seeeduino Lotus sketch uploading problem

Hello, I have met the same problem when I was debugging an Arduino board, then I found in Device Manager that every time I burn the program, the No. of the port of the board changed. I don't know why, but I configured them forcibly to have the same port number. Then the problem solved. I guess you c...
by bestlux
Tue Feb 26, 2019 3:26 pm
Forum: Arduino & Seeeduino
Topic: LoRaWan Gateway not receiving any packets
Replies: 1
Views: 744

Re: LoRaWan Gateway not receiving any packets

Hello, I do not know detailed information about how you implement it. You can follow the normal step to readd the device again and find if it can work. 1. For gateway, please restart the pktfwd as you stopping it for loiotsudo systemctl enable pktfwdsudo systemctl restart pktfwd2. 2. For arduino, Yo...