my_sensor_app

my_sensor_app: Apache Mynewt Sensor Network Application for STM32 Blue Pill with ESP8266 and nRF24L01 (includes Geolocation)

This C program runs in 4 modes, as described in Build Your IoT Sensor Network — STM32 Blue Pill + nRF24L01 + ESP8266 + Apache Mynewt + thethings.io

1️⃣ Standalone Node (Blue Pill with ESP8266): The program polls the Blue Pill internal temperature sensor every 10 seconds and transmits the sensor data (JSON format) to a CoAP (UDP) Server, such as thethings.io.

2️⃣ Sensor Node (Blue Pill with nRF24L01): The program polls the Blue Pill internal temperature sensor every 10 seconds and transmits the sensor data (CBOR format) to the Collector Node.

3️⃣ Collector Node (Blue Pill with nRF24L01 and ESP8266): The program receives sensor data (CBOR format) from the Sensor Node, and transmits the sensor data (JSON format) to a CoAP (UDP) Server, such as thethings.io.

4️⃣ WiFi Geolocation (Blue Pill with ESP8266): The program sends WiFi Access Point MAC Addresses and Signal Strength scanned by ESP8266 to a CoAP (UDP) Server, such as thethings.io. See https://github.com/lupyuen/thethingsio-wifi-geolocation

For Rust version: The Rust version of the application has been ported to Rust in /src. The C application code in this folder is not used in the Rust version, except support.c and vsscanf.c

pkg.yml: Mynewt application info and dependencies

syscfg.yml: Mynewt application settings

src: Application source files in C for Mynewt build. These C files are compiled into the Mynewt ROM image. Fo Rust version: The actual application source files have been ported to Rust in /src

src/main.c: Previous C version of the main program. Contains main()

src/geolocate.c: WiFi geolocation functions

src/geolocate.h: WiFi geolocation functions

src/sensor.c: Register Listener Function to be called by Mynewt after polling the temperature sensor every 10 seconds

src/sensor.h: Register Listener Function to be called by Mynewt after polling the temperature sensor every 10 seconds

src/network.c: Send sensor data to IoT network

src/network.h: Send sensor data to IoT network

src/support.c: Low-level C support functions needed for the Mynewt application

src/vsscanf.c: Patched version of apps/my_sensor_app/src/vsscanf.c that fixes BC95-G and ESP8266 response parsing bugs. The patched file must be present in that location.

test: Test scripts (incomplete)

OLDsrc: (NOTUSED) Previous C version of the application

Patch for vsscanf.c

Note that we are using a patched version of apps/my_sensor_app/src/vsscanf.c that fixes BC95-G and ESP8266 response parsing bugs. The patched file must be present in that location.