# MQ SENSOR PCB ## Description MQ SENSOR PCB DESIGNING 2 model ## Project Details - **Owner:** mounika - **Created:** 12/7/2023 - **Last Updated:** 1/25/2024 - **Visibility:** Public - **Stars:** 1 ## Key Components ### J1 — [Connector 01x04 Horizontal](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal~h0.md) - Part Type: Connector **Pins:** - PIN_1 [pin 1] - PIN_2 [pin 2] - PIN_3 [pin 3] - PIN_4 [pin 4] ### LED1 — LED 0402 - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### MQ — [MQ-3](https://www.flux.ai/vasy_skral/mq-3~vrt.md) - Manufacturer Part Number: MQ-3 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Datasheet URL: https://www.sparkfun.com/datasheets/Sensors/MQ-3.pdf - Manufacturer Name: SparkFun Electronics **Pins:** - A1 [pin 6] - A2 [pin 4] - B1 [pin 1] - B2 [pin 3] - VH- [pin 5] - VH+ [pin 2] ### U1 — [LM393N/NOPB](https://www.flux.ai/adrian95/lm393nnopb~2kc.md) - Part Type: Integrated Circuit - Datasheet URL: https://www.snapeda.com/parts/LM2903D/Texas%20Instruments/datasheet/ - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: LM393N/NOPB **Pins:** - 1IN- [pin 2] - 1IN+ [pin 3] - 1OUT [pin 1] - 2IN- [pin 6] - 2IN+ [pin 5] - 2OUT [pin 7] - GND [pin 4] - VCC [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/mounika/mq-sensor-pcb~4u](https://www.flux.ai/mounika/mq-sensor-pcb~4u).* --- *Generated from [https://www.flux.ai/mounika/mq-sensor-pcb~4u](https://www.flux.ai/mounika/mq-sensor-pcb~4u)*