BLE 4.0
2 devices
DFRobot Beetle BLE

Ultra-compact Arduino Uno-compatible board with BLE 4.0 (CC2540), ATmega328P, sewable gold-plated I/O pads, and wireless programming in a 28.8x33.1mm wearable form factor.
AVR 8-bit single-core @ 16MHz2KB SRAM32KBBLE BLE 4.0
~$15View

Pycom LoPy 1.0
module
ESP32-based MicroPython module combining 802.11b/g/n WiFi, Bluetooth, and LoRa/LoRaWAN (868/915 MHz) in one board. Can act as a nano LoRa gateway and is 100% Python programmable for multi-protocol IoT
ESP32 dual-core Xtensa LX6 @ 240 MHz4MB8MBWiFi 802.11 b/g/nBLE BLE 4.0
~$40View
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