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Tiny Linux SBC (28x21mm) based on Rockchip RV1103 with ARM Cortex-A7 @ 1.2GHz, RISC-V MCU, 0.5 TOPS NPU, 64MB DDR2, MIPI CSI camera, 17 GPIO pins, and castellated-hole design for direct soldering.

ESP8266-based IoT development board by Heltec with built-in 0.91-inch OLED display, Li-Po battery management, and WiFi connectivity in a compact 50.9x18.2mm form factor.