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STD DHT22 SPI Driver

License: MIT

Mode: Editors' pick

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Update time: 2022-09-08 22:43:05
Creation time: 2018-09-10 19:37:21
Description
Circuit to drive the DHT22 temperature and humidity sensor via the SPI bus. The advantage is, that it uses next to no CPU resources as everything runs in hardware on most platforms. This allows a multitaking OS like Linux to reliably read the sensor without issues. TESTED WORKING
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ID Name Designator Footprint Quantity
1 1u C-DHT22 CAP-D8.0XF3.5 1
2 SD101CW-E3-08 D1,D2 DO-35 2
3 Header-Male-2.54_2x4 P-SPI HDR-4X2/2.54 1
4 BSS138 Q1,Q2 SOT-23(SOT-23-3) 2
5 33k R-DHT AXIAL-0.3 1
6 10k R-DHTCE-PU,R-MISO-PU AXIAL-0.3 2
7 DHT22 S1 DHT22_AM2303_VERT 1

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