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Can become a BLE Heart Rate Monitor (a standard profile for BLE) - you just need to add the pulse-detection circuitry
1 mm resolution: Fine-grained readings for precise level monitoring and distance measurement
and education kits
reads and writes MIFARE cards
ESP32-C3 Super Mini Development Board STYLE:ESP32-C3 with Flash Memory welded Can become a BLE HeartESP32 C3 Super Mini Development Board The ESP32 C3 Super Mini Development Board is a compact WiFi and Bluetooth board for IoT projects, smart devices, sensors, automation, and portable electronics. It uses the ESP32 C3 chip with a 32 bit RISC V processor, making it a small but capable board for wireless projects. This board is a good choice for users who need an ESP32 board in a smaller size. It supports WiFi, Bluetooth 5 LE, USB C programming, GPIO
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