PoE HAT
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Introduction
ROCK Pi PoE HAT is a HAT accessories designed for Raspberry Pi and ROCK Pi 4. The PoE HAT allows you to power your Raspberry Pi or ROCK Pi 4 using Power over Ethernet–enabled networks; for this product to be used, the network it is connected to needs to have power-sourcing equipment installed.
It comes with the following features:
- 802.3at up to 21W(5V/4.2A)
- PWM control FAN up to 12000RPM
- Temperature sensor DS18B20
- Optional 40PIN GPIO pass-through exported
- Compatible with ROCK Pi 4, Raspberry Pi 3B+ and Raspberry Pi 4
- Clean design by hiding the fan and the big transformer inside
- EEPROM for HAT identity and driver probe
Supplied with this product
- ROCK Pi PoE HAT
- Mechanical spacers
Other hardware needed
- A Raspberry Pi 4 Model B or Raspberry Pi 3 Model B+ or ROCK Pi 4
- An Ethernet cable
- Power-sourcing equipment for a 802.3af Power over Ethernet network
Model
| Model | Description |
|---|---|
| F3 | Design for Raspberry Pi 3B+/4 |
| F4 | Use with ROCK Pi 4 |
The difference between F3 and F4 is, F3 and F4 uses different GPIO for fan control. F4 use ADC for temperature detection, while F3 uses DS18B20.
PINOUT
| Raspberry Pi | ROCK Pi 4 | Pin# | Pin# | ROCK Pi 4 | Raspberry Pi | |
|---|---|---|---|---|---|---|
| 1 | 2 | +5.0V | +5.0V | |||
| 3 | 4 | +5.0V | +5.0V | |||
| 5 | 6 | GND | GND | |||
| BCM4 | GPIO2_B3 | 7 | 8 | |||
| GND | GND | 9 | 10 | |||
| PWM0 | 11 | 12 | ||||
| PWM1 | 13 | 14 | GND | GND | ||
| BCM22 | GPIO4_C5 | 15 | 16 | GPIO4_D2 | ||
| 17 | 18 | |||||
| 19 | 20 | GND | GND | |||
| 21 | 22 | |||||
| 23 | 24 | |||||
| GND | GND | 25 | 26 | ADC_IN0 | ||
| I2C0_SDA | I2C2_SDA | 27 | 28 | I2C2_SLK | I2C0_SCL | |
| 29 | 30 | GND | GND | |||
| 31 | 32 | |||||
| PWM1 | GPIO2_B4 | 33 | 34 | GND | GND | |
| 35 | 36 | |||||
| 37 | 38 | |||||
| GND | GND | 39 | 40 |