Robotics HAT for Raspberry Pi
This HAT contains the following components:
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5V / 3A high performance DC-DC switching supply that powers the Raspberry Pi from external power source or LiPo batteries (from the Dynamixel bus)
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Dual Dynamixel bus with very low latency (connected on SPI and not USB like the standard Robotis interfaces); supports speeds up to 2Mbps and the board can be fitted with Molex SPOX (for AX and MX servos), Molex Micro Latch (for XL-320) or JST-XE (for X series servos). Only TTL models supported (no RS485)
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IMU - LSM6DS3 Accelerometer and Gyroscope connected on I2C
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4 channel ADC (TLA2024) connected on I2C for voltage monitoring
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WM8960 stereo codec with dual onnidirectional mics and output for 2 x 1W speakers, connected on I2S bus and used for speech control / recognition and synthesis
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PWM fan control using BCM GPIO12; two connectors are provided one for fans on heatsink and one for fan on the robot case
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connector for a 2.0" 320 x 240 IPS Diplay from Adafruit using ST7789 and connected on SPI (CE1).
| Revision | Details |
|---|---|
| rev B.1. | Change power plug, added CP2104 for console access allowing access direct over USB, changed pin header to a through hole one as the SMD only go to 7.5mm and we wanted higher clearance from Raspberry Pi (and possible compatibility with Coral boards). |
| rev A.1. | Initial release. Details |