ESP32-Wroom-SMD & AM2302 & CR123a battery case
thingiverse
6,5 x 7,8 cm case which holds ESP32 SMD chip, AM2302 temperature and moisture sensor, DC uppump and CR123a battery case. Replaceable decorative top. Parts are: - ESP32-WROOM-32D ESP32-WROOM-32U WiFi+BT+BLE ESP32 Module onboard antenna / U.FL IPEX IPX connector 4MB Flash Espressif Original - 2.4GHz 3dBi WiFi 2.4g Antenna Aerial RP-SMA Male wireless router+ 17cm PCI U.FL IPX to RP SMA Male Pigtail Cable ESP8266 ESP32 - CR123A Lithium Battery + case - WAVGAT mini 1.8V 3V 3.7V 5V to 3.3V Boost & Buck Low Noise Regulated Charge Pump 2 in 1 DC/DC Converter - AM2302 sensor ESP32 connection with AWG30 (0.25 mm) trap wires. Soldering recommended. Low power setup so that secondary circuit is activated by setting an open drain GPIO to the ground, as an example battery voltage to ESP32 only, then DC uppump voltage for AM2302 so that ground is activated by the ESP32 and perhaps voltage measurements with 2 x 100 kOhm voltage splitters so that ground is activated by the open drain pin. Threads are for 2.5 mm screws.
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