@ameero95 managed to get a downlink message on Chirpstack with my private gateway but still no good result from TTN.

Hello everyone, I'm trying to send a downlink from my LoRaWAN application server to my M5 LoRaWAN Unit based end node. The code given by M5Stack for receiving the message doesnt seem to work and after looking through the AT Commands datasheet of the ASR6501 module, I found out that an AT command needs be sent to the module to check if there are any saved downlink payload in the buffer. The original code given by M5 does not send this command to the module (just check the serial for any response from the module).

Has anyone gotten downlinks to work for this module? Any help is appreciated.

Regards,
Ameer

@jeets said in How to connect SIM7020G to the network?:

airtel sim card

does your sim card provider's network provider/s support NB-IoT? Because the SIM7020G only supports NB-IoT.

Hello everyone, I've acquired some M5Stack Zigbee Units in the hopes of having it run on some of M5StickC-Plus's in order to play around with Zigbee but unfortunately the example and also documentation for this device are quite lacking. I'm playing around with the example given for the M5Stack and trying to alter it to run on the M5. Does anyone have any idea how to use the DRFZigbee code source file and functions for this? Any help is greatly appreciated.

Regards,
Ameer

Hi @Exie, have you managed to talk to the Zigbee unit through UART or managed to comprehend the example code given by M5Stack?

Regards,
Ameer

@felmue Hi, thanks for the reply. I'll look into it :D

Hello, I'm using the I2C driver library from ESP-IDF to communicate with some sensors connected to the GROVE port and I have this problem where the sensors are just not responding to any I2C writes and reads from the microcontroller (NO ACKs). The weird thing is, when I used the premade libraries from Adafruit (using Wire), it works just fine and managed to find the sensors on the GROVE port.

One thing I noticed, is that when I use the Adafruit libraries, the power LED on the sensor module lights up meaning the sensor is receiving power from the GROVE port. When I use the I2C drivers from ESP-IDF however, the LED on the module doesnt light up.

What I found to be crazy weird is that, when I flash the M5 with the Arduino code first, the M5 could then find the sensor when I flash the ESP32 with the code using the I2C driver from ESP-IDF. This however only works when I directly flash the IDF code after I flashed the Arduino code on the M5. The LED on the sensor is still turned on for some reason with the new code flashed on the M5.

When I turn the M5 off (press side button) and turn it on again, the M5 would then be unable to find the sensor and the LED of the sensor module doesnt light up.

This is what I found out while tinkering around between IDF and Arduino with the M5StickC Plus. It would be nice if any engineers from M5Stack can help me figure out why the M5StickC Plus is behaving like this.

Thanks for the help,

Regards,
Ameer

Hi everyone, I cant seem to drive the STEMMA QT sensor modules that I have using the Grove to Stemma QT cable adapter sold by M5Stack through the Grove port of the M5StickC Plus board. Funnily enough, the M5StickC Plus's Grove port is able to drive an Ultrasonic sensor from M5Stack that needs 5V to run it. I would appreciate any kind of help cause I'm out of ideas already. Thank you in advance.

Regards,
Ameer