ESP32-PICO-D4-Demo test board
This test board is just to verify whether this chip can replace the entire module. Of course, you can use it as a mini development board!
Welding pictures:
Partial close-up:
Please note: In this welding, only one 0R resistor was used in the antenna part, and the two capacitors and one inductor matching the antenna were not welded. Therefore, after turning on Bluetooth, the transmission distance is about 5 meters. Partners who have the conditions can try welding. These components will greatly reduce the heat generated by the chip ~
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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.
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