WM1302 Raspberry Pi Hat

marki763 · May 11, 2021, 3:03pm

Has anyone been able to configure this board/card configuration with the sx1302_hal git repository? I cant seem to find a combinatino of pins that will get the radio to start successfuly

marki763 · May 11, 2021, 3:18pm

Found this link. Replace the reser_lgw.sh script with this one and it seems to come to life.

github.com

JoToSystems/SX1302_UDP_Packet_Forwarder/blob/main/reset_lgw.sh

#!/bin/sh

# This script is intended to be used on SX1302 CoreCell platform, it performs
# the following actions:
#       - export/unpexort GPIO23 and GPIO18 used to reset the SX1302 chip and to enable the LDOs
#
# Usage examples:
#       ./reset_lgw.sh stop
#       ./reset_lgw.sh start

# GPIO mapping has to be adapted with HW
#

SX1302_RESET_PIN=17
# SX1302_POWER_EN_PIN=18

WAIT_GPIO() {
    sleep 0.1
}

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aaronjudd · July 28, 2021, 1:17pm

The documentation here is not accurate, and I could not get it to work. The instructions also do not match the pinouts mentioned on the diagrams. Sadly, the documentation is generally very poor and missing.

The only combination that I could get to work, when using the WM1302-US915+ Pi Hat + SX1302_HAL was the following:

SX1302_RESET_PIN=17 # SX1302 reset
SX1302_POWER_EN_PIN=18 # SX1302 power enable

Still testing, as not 100% sure this is correct, lora_pkt_fwd does work, and the radios do initialize.