Qwiic pHAT v2.0 for Raspberry Pi – Sparkfun DEV-15945
The SparkFun Qwiic pHAT V2.0 for Raspberry Pi provides you with the quickest and easiest way to enter into SparkFun’s Qwiic ecosystem while still using that Raspberry Pi that you’ve come to know and love. The Qwiic pHAT connects the I2C bus (GND, 3.3V, SDA, and SCL) on your Raspberry Pi to an array of Qwiic connectors on the HAT. Since the Qwiic system allows for daisy-chaining boards with different addresses, you can stack as many sensors as you’d like to create a tower of sensing power!
The Qwiic pHAT V2.0 has four Qwiic connect ports (two on its side and two vertical), all on the same I2C bus. We’ve also made sure to add a simple 5V screw terminal to power boards that may need more than 3.3V.
The V2 board has updated mounting holes to accommodate the typical Qwiic board dimension of 1.0″ x 1.0″. This HAT is compatible with any Raspberry Pi that utilizes the standard 2×20 GPIO header as well as the NVIDIA Jetson Nano and Google Coral.
Note: When placing a Raspberry Pi and the pHAT in an enclosure (like the Pi Tin), we noticed that the pHAT was not fully inserted in Pi’s header pins. For a secure connection, you’ll need to add a pair of 1×20 stackable headers to extend the pins to your cart.
Qwiic pHAT v2.0 Features:
- 4x Qwiic Connection Ports
- 1x 5V Tolerant Screw Terminal
- 1x General Purpose Button
- HAT-compatible 40-pin Female Header
Qwiic pHAT Board Dimensions:
The board is about 65.00mm x 30.50mm. There are six mounting holes on the board. Two pairs of mounting holes were optimized to easily mount Qwiic devices that have the standard 1″ x 1″ sized board.
Qwiic pHAT Schematic:
Qwiic pHAT Board Layout:
- I2C Pins: The Qwiic pHAT has 4x Qwiic connect ports, all on the same I2C bus. There are two vertical Qwiic connectors located at the center and two horizontal connectors on the right side.
- 5V Power: If you need to power a device with 5V, we have broken out the Raspberry Pi’s 5V and GND pins on the side with a screw terminal. Depending on your project, you can also solder to the PTH pads.
- General Purpose Button: Included on the board is a button connected to GPIO17. You can use the button however you would like but we found it useful to shutdown or reboot a Raspberry Pi with a Python script.
- Jumpers: There are built-in pull-up resistors on board. If necessary, you can cut the traces to disable depending on the number of boards connected to the I2C bus.