Pioneer IoT Add-On Shield
The Pioneer IoT Add-On Shield is a unique board designed to add more functionality to the PSoC 6 from Cypress while remaining useful and practical for plenty of other Internet of Things applications. Each Add-On Shield is a pretty simple board with an equally simple layout that provides XBee, Qwiic and microSD functionality not only to the PSoC 6 but also to any board with an Arduino R3 shield format. On top of designing this board with a reliable IoT performance, SparkFun have written a guide that will show you how to communicate with a Raspberry Pi via Bluetooth® and WiFi, as well as how to communicate between a PSoC 4 BLE Pioneer Board and the PSoC 6 Pioneer Board via Bluetooth Low Energy.
In addition to the microSD card slot, XBee headers and Qwiic connector, the Pioneer IoT Add-On Shield is equipped with a micro-B USB connector. This connector provides 5V to the 3.3V regulator for the XBee module, overriding the 5V coming from the Arduino header and allowing high-power XBee modules to function properly. This is all thanks to the 3.3V regulator, level shift buffer, I2C level shift circuitry and a voltage supply selection jumper — all found on the shield.