# IoT gas detector ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** jed - **Created:** 10/23/2023 - **Last Updated:** 10/23/2023 - **Visibility:** Public ## Key Components ### B3 — [Battery Holder 1 Cell SMD](https://www.flux.ai/jharwinbarrozo/battery-holder-smd-1-cell-18650.md) - Manufacturer Part Number: 1042 - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p27.pdf - Voltage: 5V **Pins:** - NEGATIVE - POSITIVE ### BZ1 — [Buzzer](https://www.flux.ai/jecstronic/buzzer.md) - Part Type: Buzzer **Pins:** - - - + ### LED1 — [WP7113SRD/D](https://www.flux.ai/jecstronic/wp7113srdd.md) - Part Type: LED - Datasheet URL: https://www.kingbrightusa.com/images/catalog/SPEC/WP7113SRD-D.pdf - Forward Voltage: 1.85V - Manufacturer Part Number: WP7113SRD/D - Manufacturer Name: Kingbright - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### MQ-2 Sensor — [MQ-2](https://www.flux.ai/vasy_skral/mq-2.md) - Manufacturer Part Number: MQ-2 - Manufacturer Name: SparkFun Electronics - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://cdn.sparkfun.com/assets/3/b/0/6/d/MQ-2.pdf **Pins:** - A1 [pin 6] - A2 [pin 4] - B1 [pin 1] - B2 [pin 3] - VH- [pin 5] - VH+ [pin 2] ### U1 — [Nodemcu-12E ESP8266](https://www.flux.ai/jharwinbarrozo/nodemcu-12e-esp8266.md) - Datasheet URL: https://components101.com/development-boards/nodemcu-esp8266-pinout-features-and-datasheet - Part Type: Microcontroller - Manufacturer Part Number: Nodemcu-12E ESP8266 **Pins:** - 3V3 [pin 11] - 3V3 [pin 25] - 3V3 [pin 16] - A0 [pin 1] - CMD GPIO11 [pin 7] - D0 GPIO16 [pin 30] - D1 GPIO5 SCL [pin 29] - D2 GPIO4 SDA [pin 28] - D3 GPIO0 [pin 27] - D4 GPIO2 [pin 26] - D5 GPIO14 [pin 23] - D6 GPIO12 [pin 22] - D7 GPIO13 [pin 21] - D8 GPIO15 [pin 20] - EN [pin 12] - GND [pin 17] - GND [pin 14] - GND [pin 10] - GND [pin 24] - RST [pin 13] - RSV1 [pin 2] - RSV2 [pin 3] - RX GPIO3 [pin 19] - SCLK GPIO6 [pin 9] - SD0 GPIO7 MISO [pin 8] - SD1 GPIO8 MOSI [pin 6] - SD2 GPIO10 [pin 4] - SD2 GPIO9 [pin 5] - TX GPIO1 [pin 18] - VIN [pin 15] ### U3 Charging Module — [TP4056_Module](https://www.flux.ai/wolfxpac/tp4056module.md) - Manufacturer Name: Generic - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://robocraze.com/products/tp4056-lithium-battery-charging-board - Part Type: Module **Pins:** - BAT- [pin 5] - BAT+ [pin 6] - IN- [pin 1] - IN+ [pin 2] - OUT- [pin 3] - OUT+ [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jed/iot-gas-detector](https://www.flux.ai/jed/iot-gas-detector).* --- *Generated from [https://www.flux.ai/jed/iot-gas-detector](https://www.flux.ai/jed/iot-gas-detector)*