hpbock/esp12-environment-sensorEnvironment sensor that is powered by a 18650 battery using a dht22 to sense temperature and humidity. Connectivity is provided wireless using an esp12 sleeping deeply most of the time.
Esp12-dht22 is an open-source printed circuit board by hpbock, from the hpbock/esp12-environment-sensor repository on GitHub, published under the MIT licence. It is a 2-layer board of 42.9 × 18.5 mm with 13 parts on 22 nets, routed with 57 tracks and 11 vias.
It is built around the ESP-12E, DHT22 and HT7333-A. Its parts include 4 resistors, 3 capacitors, 2 ICs, 1 connector and 1 inductor. It belongs with the ESP8266 boards of this library.
Environment sensor that is powered by a 18650 battery using a dht22 to sense temperature and humidity. Connectivity is provided wireless using an esp12 sleeping deeply most of the time.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10uF | Capacitor_SMD:CP_Elec_4x5.8 | C1, C2 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C3 |
| 1 | 2k2 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4 |
| 1 | 330k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1 |
| 1 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 1 | Battery | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J1 |
| 1 | DHT22 | Sensor:Aosong_DHT11_5.5x12.0_P2.54mm | U2 |
| 1 | ESP-12E | RF_Module:ESP-12E | U1 |
| 1 | HT7333-A | Package_TO_SOT_SMD:SOT-89-3_Handsoldering | L1 |
The 11 most common of 13 parts.
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It measures 42.9 × 18.5 mm and has 2 copper layers, 1.6 mm thick.
13 parts, built around the ESP-12E, DHT22 and HT7333-A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the hpbock/esp12-environment-sensor repository on GitHub, at the commit this page was made from: the board is esp12-dht22.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).