
Aeroq Hardware v3
EnriqueNeyra/Aeroq
An Indoor Air Quality Monitor Powered by ESP32, SCD40, and SEN54

Q940 is an open-source printed circuit board by mhorimoto, from the mhorimoto/Q940 repository on GitHub. It is a 2-layer board of 68.6 × 53.3 mm with 22 parts on 30 nets, routed with 58 tracks and 1 via.
It is built around the 0.1UF 50V 5*11. Its parts include 11 connectors and 5 capacitors.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1uF/50V | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C102, C103, C104, C105 |
| 4 | MountingHole_3.2mm | Arduino_MountingHole:MountingHole_3.2mm | MH1, MH2, MH3, MH4 |
| 2 | SHT-3x | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J105, J106 |
| 1 | 100uF/25V | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C101 |
| 1 | Analog | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J3 |
| 1 | Digital/PWM | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J2 |
| 1 | Digital/PWM | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J4 |
| 1 | LCD 16x2 | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J104 |
| 1 | MPU6050 | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J107 |
| 1 | PWR_INPUT | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J101 |
| 1 | Power | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J1 |
| 1 | STOP1_SW | Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP1 |
| 1 | STOP2_SW | Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm_NumberLabels | JP2 |
| 1 | TO L298N MOTOR-DRIVER | Connector_JST:JST_XH_B7B-XH-A_1x07_P2.50mm_Vertical | J102 |
| 1 | TO_HX711 | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J103 |
It measures 68.6 × 53.3 mm and has 2 copper layers, 1.6 mm thick.
22 parts, built around the 0.1UF 50V 5*11. 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 mhorimoto/Q940 repository on GitHub, at the commit this page was made from: the board is Q940.kicad_pcb and its schematic Q940.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask mhorimoto before reusing the design.

EnriqueNeyra/Aeroq
An Indoor Air Quality Monitor Powered by ESP32, SCD40, and SEN54

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All-in-one home air quality monitor measuring Temp, Humidity, CO2, VOCs, Particulate Matter, and NOx. Powered by ESP32-C3 running esphome, and built with Home Assistant integration


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