ESP32-based PWM Fancontroller with integrated Temperature & Humdity Sensor.
Rev 1.0 (ESP32): https://zeroflow.github.io/esphome-fancontroller/ Rev 2.0 (ESP32-S2): Follow Guide below
- 12V DC Barrel Input (5.5x2.1mm)
- 4x PWM Fan Output
- Integrated HDC1080 Temperature & Humidity Sensor
- I2C Expansion Port
- 3 User Buttons
TBD
Buy boards & cases at https://www.tindie.com/products/zeroflow/esp32-fancontroller/
Currently, there are known issues with flashing the ESP32-S2 with esptool.js. Thus, flashing with the normal python esptool is necessary.
To do this:
- Add new board config to your esphome instance
- Click "Install"
- Select "Manual Download"
- Download "Factory Format"
- Upload binary to esp32s2 (e.g.
python -m esptool --chip esp32s2 --port COMn write_flash 0x0 wifi-fancontroller-s2.factory.bin)
| Pin | Usage |
|---|---|
| GPIO0 | Boot Button, Push to enter flashing mode |
| GPIO1 | Builtin LED, Low=On |
| GPIO12 | Fan 1 PWM |
| GPIO13 | Fan 1 Sense |
| GPIO14 | Fan 2 PWM |
| GPIO15 | Fan 2 Speed Sense |
| GPIO16 | Fan 3 PWM |
| GPIO17 | Fan 3 Speed Sense |
| GPIO18 | Fan 4 PWM |
| GPIO21 | Fan 4 Speed Sense |
The board offers an I2C extension port above Fan 4.
| Nr. | Pin - | Description |
|---|---|---|
| 1 | GND | |
| 2 | INT | GPIO 35 |
| 3 | SCL | GPIO 34, 4.7k PU |
| 4 | SDA | GPIO 33, 4.7k PU |
| 5 | +3V3 |
| Pin | Usage |
|---|---|
| GPIO0 | Boot Button, Push to enter flashing mode |
| GPIO1 | Serial TX |
| GPIO2 | Builtin LED, Low=On |
| GPIO3 | Serial RX |
| GPIO4 | Fan 4 PWM |
| GPIO5 | Unused (strapping pin) |
| GPIO12 | Unused (strapping pin) |
| GPIO13 | Fan 3 Speed Sense |
| GPIO14 | Unused (outputs PWM at boot) |
| GPIO15 | Unused (outputs PWM at boot, strapping pin) |
| GPIO16 | Fan 4 Speed Sense |
| GPIO17 | I2C SDA (HDC1080 + expansion header) |
| GPIO18 | I2C SCL (HDC1080 + expansion header) |
| GPIO19 | I2C INT (expansion header) |
| GPIO21 | User Button 3 |
| GPIO22 | User Button 2 |
| GPIO23 | User Button 1 |
| GPIO25 | Fan 2 PWM |
| GPIO26 | Fan 2 Speed Sense |
| GPIO27 | Fan 3 PWM |
| GPIO32 | Fan 1 PWM |
| GPIO33 | Fan 1 Sense |
| GPIO34 | External Input 1 |
| GPIO35 | External Input 2 |
| GPIO36 | Unused |
| GPIO39 | Unused |
The board offers an I2C extension port above Fan 4.
| Nr. | Pin - | Description |
|---|---|---|
| 1 | GND | |
| 2 | INT | GPIO 19 |
| 3 | SCL | GPIO 18, 4.7k PU |
| 4 | SDA | GPIO 17, 4.7k PU |
| 5 | +3V3 |
The board offers two external inputs, e.g. for a door intrusion alarm or a 100% power switch.
| Nr. | Pin - | Description |
|---|---|---|
| 1 | GND | |
| 2 | IN2 | 10k PU |
| 3 | IN1 | 10k PU |