The PCB’s for the Sumo robot (see “New Sumo Robot Assembled, and looking good!“) arrived. It is the ‘production’ version of that shield I have shown in “Sensor and Communication Shield for Sumo Robot” which adds following to the robot:

1. Ultrasonic module
2. Bluetooth module
3. nRF24L01+ module
4. I2C I/O Expander for 8 extra I/Os
5. One general purpose I/O header
6. One general purpose I2C header
7. Up to 6 infrared distance sensors

Sensor Shield

The boards came in pieces of four boards together (was less expensive :-)):

Unpopulated Shield Boards

With SMD components populated with the NXP PCA9554:

SMD Components Populated

Sensor Shield bottom side:

Sensor Shield Back Side

Sensor Shield top side:

Sensor Shield Top Side

With headers populated and mounted on Sumo robot:

Sensor Shield with Headers on Robot

With Ultrasonic module, Bluetooth, nRF24L01+ transceiver and infrared distance sensors:

Sensor Shield with Bluetooth, nRF24L01+, Ultrasonic and Infrared Distance Sensors

Happy Shielding 🙂