marsfan / esp32_envionment_monitor

Simple environment monitoring solution using an ESP32

Environment Monitoring Program

This iss my first attempt at a simple household environment monitoring system that uses an ESP-32, a BME688, and a VEML7700.

Extra Files

There are a few files not included in this repository that are necessary to compile the project. The Bosch BSEC library, and a WiFi configuration file.

BSEC Library

I have not included the BSEC library in the repo, as I am not sure about the licensing of doing that. You can get the library for free and add the missing files. See the file placeholder.md for instructions

WiFi and MQTT Configuration

Also not included is the file private_config.h. There is not much to this file, it just defines certain options that I want to keep private. Simple create the file with the following preprocessor definitions

• WIFI_SSID: String of the SSID of the network to connect to
• WIFI_PASSWORD: String of the password for connecting to WiFi
• MQTT_BROKER_URI: The URI to publish MQTT data to.
• MQTT_USERNAME: The username to use for logging into the MQTT broker
• MQTT_PASSWORD: The password to use for logging into the MQTT broker
• MQTT_TEMP_TOPIC: The MQTT Topic to use for publishing the temperature.

More fields will be added to this over time

Linting

I can't seem to get the IDF clang-tidy working right on Windows, so I set up a container using Docker that will run the linter, and copy the results back to the host system. Run it with make lint.

Cable Color Mapping

I am using my ribbon cable adapter from the Bus Pirate with the ESP-PROG Here is the color mapping

Color	JTAG Purpose	SPI Purpose	I2C Purpose	UART Purpose
Brown	VCC	VCC	VCC	VCC
Red	TMS	CS		CTS
Orange	GND	GND	GND	GND
Yellow	TCK	SCK	SCL	TXD
Green	GND	GND	GND	GND
Blue	TDO	MISO/DI	SDA	RTS
Purple	GND	GND	GND	GND
Gray	TDI	MOSI/DO	SDA	RXD
White	GND	GND	GND	GND
Black	NC	NC	NC	NC

Note: Blue and Gray must be tied together in I2C Mode