Production-intent ESP32-S3 handheld controller with USB-C sink power, ST7789 SPI TFT, 5-way controls, class-D speaker output, and factory test pads on a 4-layer PCB.

NRF52840 evaluation board with a battery charger (BQ24072), display(Adafruit 1.47" 172x320 ST7789), and a trackball sensor (PAT9130)

Production-oriented 2-layer PCB for a desktop mini CRT-style collectible using an ESP32-C3 Mini module, USB-C LiPo charging, ST7789 TFT display, 3 Hall sensors, eject button, piezo buzzer, and battery monitoring.

Production-oriented 2-layer PCB for a desktop mini CRT-style collectible using an ESP32-C3 Mini module, USB-C LiPo charging, ST7789 TFT display, 3 Hall sensors, eject button, piezo buzzer, and battery monitoring.

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ESP32-S3 Sense camera board with ST7789 SPI display, MicroSD storage, and three right-edge tactile buttons for capture and mode controls.

Single-board ESP32-S3 desktop robot cat companion with ST7789 display, touch pads, IMU, MicroSD, and USB-C Li-Po charging.

ESP32-S3-PICO-N2R8 Qi-Powered Camera Module with Buck-Boost Regulation, OV2640, ST7789 Display, Advanced Fuel Gauge, and Tag-Connect Programming