Olimex ESP32-C6-DevKit-Lipo

Dev Board
Olimex ESP32-C6-DevKit-Lipo

Breadboard-friendly open-source ESP32-C6 dev board with WiFi 6, Thread, Zigbee, BLE 5, built-in LiPo charger, and dual USB-C — all for under €9.

RISC-V single-core @ 160MHz512KB SRAM4MBWiFi 802.11ax (WiFi 6)BLE BLE 5.3Zigbee Zigbee 3.0
~$10View

Olimex ESP32-H2-DevKit-LiPo

Dev Board
Olimex ESP32-H2-DevKit-LiPo

Ultra-affordable open-source ESP32-H2 dev board for Thread, Zigbee, and Matter — BLE 5, LiPo charging, Qwiic/Stemma, dual USB-C, for €5.95.

RISC-V single-core @ 96MHz320KB SRAM4MBBLE BLE 5.0Zigbee Zigbee 3.0

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More to explore — popular traits shared by devices with USB: 2× USB-C (serial + native JTAG).