This is a 3PCs pack of XIAO ESP32C3, an mini thumb-size dev board that adopts the RISC-V architecture, supporting both Wi-Fi and BLE wireless connectivities. With the support of for IDE, for MicroPython, for CircuitPython, for PlatformIO, for ESP IDF, for , for Matter, ESPNow, for Meshtastic, for WLED, for ESPHome, for Home Assistant, for Ubidots, it's a perfect kit to build your IoT projects. Outstanding performance, Powerful ESP32-C3 SoC and U.FL antenna provided that supports WiFi/Bluetooth connection over 100m. Rich Interface, There are 11 digital I/O that can be used as PWM pins and 4 analog i/o that can be used as ADC pins. It supports UART, IIC, and SPI serial communication ports, also including IIS (Internet Information ). Thumb-size Design, 21 x 17.5mm overall dimension, portable and . Low power consumption, Lowest as 44 A (deep sleep mode), with 4 working modes available. Onboard battery charge IC, Supports battery charging, great for various wearable scenarios and wireless IoT applications. XIAO ESP32C3 has equipped a highly-integrated ESP32-C3 chip, built around a 32-bit RISC-V chip processor with a four-stage pipeline that operates at up to 160 MHz. The board equips highly-integrated ESP32-C3 SoC. The chip has been installed with a complete 2.4GHz Wi-Fi subsystem which means it supports Station mode, SoftAP mode, SoftAP & Station mode, and promiscuous mode for multiple Wi-Fi applications. It works under an ultra-low power state, also supporting features of Bluetooth 5 and Bluetooth mesh. There are 400 KB & 4 MB Flash on the chip, Application 1: Remote Tracker Materials: XIAO ESP32C3 * 1, Grove - Wio - E5 * 1, Grove - GPS * 1 Description:Thanks to the tiny size of the XIAO series, it is suitable to make the wearable devices, such as a small pet trackers. This wearable device can be used as a simple GPS-Tracker which lock its current location and publish other data via LoRa. Improvement: A compass that shows direction and distance is a great added value to the tracker that you could consider. Meanwhile, publishing altitude, speed, or other parameters could bring more scenarios to this tracker. Besides, the chip ESP32-C3 allows this tracker to communicate over WiFi or BLE, and therefore, upload the trackers data or realize the Long Range-to-MQTT bridge as well. Color: As Shown Material: PCB Package Contents: 3 * Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.