mirror of
https://github.com/KevinMidboe/hivemonitor-esp32-firmware.git
synced 2025-10-29 09:30:26 +00:00
122 lines
5.0 KiB
Markdown
122 lines
5.0 KiB
Markdown
# Hivemonitor ESP32 Firmware
|
||
|
||
Firmware for running Hivemonitor on ESP32 microcontrollers.
|
||
|
||
Complemetary hivemonitor repositories:
|
||
- [Hive monitor webpage](https://github.com/kevinmidboe/hivemonitor)
|
||
- [Hive monitor ESP32 PCB design](https://github.com/kevinmidboe/hivemonitor-pcb)
|
||
|
||
# Architecture
|
||
|
||
|
||
|
||
# Operating modes
|
||
|
||
## Setup mode
|
||
Both types of devices acting as `sending` and `gateway` have a operating and setup mode. By using the on-board switch labeled "MODE" the esp32 will boot up in setup mode and be available as a WiFi hotspot named `ESP-AP-*`. View [setup section](#setup) below.
|
||
|
||
## Sender device
|
||
Devices acting as sensor have weight, temperature and humidity sensors connected that will be read and broadcasted using ESP-NOW peer-to-peer protocol.
|
||
|
||
## Gateway device
|
||
Device acting as receiver will be simultaneously be listening for messages broadcasted to it's MAC address using ESP-NOW & connected to WiFi to send MQTT messages to a broker.
|
||
|
||
# Installation
|
||
|
||
Clone repository and navigate into folder:
|
||
```bash
|
||
git clone https://github.com/kevinmidboe/hivemonitor-esp32-firmware
|
||
cd hivemonitor-esp32-firmware
|
||
```
|
||
|
||
## TL;DR
|
||
|
||
Flash microcontroller:
|
||
```bash
|
||
wget https://raw.githubusercontent.com/glenn20/micropython-espnow-images/main/20230427-v1.20.0-espnow-2-gcc4c716f6/firmware-esp32-GENERIC.bin > firmware-esp32-espnow.bin
|
||
make flash file=firmware-esp32-espnow.bin device=/dev/tty.usbserial-02899247
|
||
```
|
||
Upload source code:
|
||
```bash
|
||
make sender device=/dev/tty.usbserial-02899247
|
||
# or
|
||
make gateway device=/dev/tty.usbserial-02899247
|
||
```
|
||
|
||
## Flashing firmware
|
||
The current supported flashing tool for micropython firmware is esptool.py. You can find this tool here: https://github.com/espressif/esptool/, or install it using pip:
|
||
|
||
```bash
|
||
pip install esptool
|
||
```
|
||
|
||
Download firmware from [supported firmware linked below](#firmware-sources) or compile required micropython with libraries listed below:
|
||
- espnow
|
||
- usocket
|
||
- umqtt.simple
|
||
|
||
Plug esp32 into computers USB and find it's connected TTY port with:
|
||
|
||
```bash
|
||
ls -l /dev/tty.*
|
||
```
|
||
|
||
Erase the existing firmware and then deploy the new firmware using:
|
||
```bash
|
||
make flash device=/dev/tty.usbserial-02899247
|
||
```
|
||
|
||
## Uploading application source files
|
||
|
||
For uploading source files we can use adafruit ampy CLI found at https://github.com/espressif/esptool, or installed with pip:
|
||
|
||
```bash
|
||
pip install adafruit-ampy
|
||
```
|
||
|
||
Upload all files for ESP32 that will be acting as a `gateway` by running:
|
||
|
||
```bash
|
||
make gateway
|
||
```
|
||
|
||
Upload all files for ESP32 that will be acting as a `sensor reader & sender` by running:
|
||
|
||
```bash
|
||
make sender
|
||
```
|
||
|
||
# Setup
|
||
|
||
After uploading source files, use the on-board MODE switch to side marked "Setup" device to boot board into setup mode. Inputs will b based on if device is setup as `sender` or `gateway`.
|
||
|
||
After setting mode switch and resetting the controller will be discoverable as a WiFi access point serving a configuration page.
|
||
1. Connect to WiFi network prefixed with `ESP-AP-`
|
||
2. Open browser to http://192.168.0.4
|
||
|
||
Below shows screenshots of gateway device in setup mode:
|
||
|
||
|
||
|
||
🎉 Setup completed!
|
||
When both a sender and gateway is setup MQTT messages should start reaching broker.
|
||
|
||
# ESP32
|
||
|
||
## Deep sleep
|
||
asdf
|
||
|
||
## Networking
|
||
There are two WiFi interfaces, STA mode is workstation mode (ESP32 is connected to the router)，AP mode provides access services (other devices connected to ESP32).
|
||
|
||
|
||
The ESP32 does not have two antennas, but we can run two interfaces `STA` & `AP`. The drawback of this is that since we only have one antenna we need to make sure the sending and receiving devices are both broadcasting on same channel. In a sitation where your WiFi access point might be brodcasting on channel e.g. 6 the ESP32 connects over WiFi on this channel. The ESP32 sending sensor data therefor needs to be broadcasting data over ESP-NOW on same channel.
|
||
|
||
## Firmware sources
|
||
|
||
| mpy version | espnow | mqtt* | socket | source |
|
||
|-------------|--------|-------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|
||
| v1.20 | ✅ | ✅ | ✅ | [github.com/glenn20/micropython-espnow/20230427-v1.20.0-espnow/firmware.bin](https://github.com/glenn20/micropython-espnow-images/blob/main/20230427-v1.20.0-espnow-2-gcc4c716f6/firmware-esp32-GENERIC.bin) |
|
||
| v1.19 | ✅ | ✅ | ✅ | [github.com/glenn20/micropython-espnow/20220709-v1.19.1-espnow/firmware.bin](https://github.com/glenn20/micropython-espnow-images/blob/main/20220709_espnow-g20-v1.19.1-espnow-6-g44f65965b/firmware-esp32-GENERIC.bin) |
|
||
|