Only compatible with the narrow version esp32 development board and without 38-pin mounting holes (https://www..de/dp/B0BMNZ99N7; https://www..de/dp/B0B7JP6VHR; https://www..de/dp/B0BMPBMPSVBMPSV). Not applicable to other versions. Expand a GPIO pin to 2, which makes it much easier for users to reuse pins for large smart home projects. Nice alternative to the bread board. Specifications: PCB material: high-quality FR-4 material. PCB layers: 2 layers. PCB thickness: 1.6 mm. Tampons: cans Size: 3.1" Product list: 3 x ESP32 unlock card. DUBEUYEW: the best choice in various modules and electronic components, parts and DIY tools. Supports your work and design challenges
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