# Willowy Copper Replicator ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** sebastian1205 - **Created:** 3/18/2025 - **Last Updated:** 3/18/2025 - **Visibility:** Public - **Application:** IoT Environmental Monitoring System - **Communication:** WiFi and Serial - **Project Description:** This project is an IoT environmental monitoring platform, integrating a dual-microcontroller design. The [Arduino-UNO-R3](https://www.flux.ai/:handle/:documentSlug?fit=U1) provides robust processing for control tasks, while the [Nodemcu-12E ESP8266](https://www.flux.ai/:handle/:documentSlug?fit=U2) enables wireless connectivity. A gas sensor ([MQ-7](https://www.flux.ai/:handle/:documentSlug?fit=U3)) is used for environmental sensing. Together, they form a flexible system for real-time monitoring and data logging, making the design scalable for various IoT and sensor applications. - **PowerSupply:** 5V primary with 3.3V regulation - **ProcessingUnits:** Arduino UNO R3 and Nodemcu-12E ESP8266 - **Sensor:** MQ series gas sensor (MQ-7) ## Key Components ### U1 — [Arduino-UNO-R3](https://www.flux.ai/jecstronic/arduino-uno-r3~kf3.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Arduino%20PDFs/A000066_Web.pdf - Manufacturer Name: Arduino - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Development Board - Manufacturer Part Number: Arduino-UNO-R3 **Pins:** - +3V3 [pin 4] - +5V [pin 5] - AREF [pin 30] - D0/RX [pin 15] - D1/TX [pin 16] - D10 [pin 25] - D11 [pin 26] - D12 [pin 27] - D13 [pin 28] - D14/A0 [pin 9] - D15/A1 [pin 10] - D16/A2 [pin 11] - D17/A3 [pin 12] - D18/A4 [pin 13] - D18/SDA [pin 31] - D19/A5 [pin 14] - D19/SCL [pin 32] - D2 [pin 17] - D3 [pin 18] - D4 [pin 19] - D5 [pin 20] - D6 [pin 21] - D7 [pin 22] - D8 [pin 23] - D9 [pin 24] - GND [pin 6] - GND [pin 29] - GND [pin 7] - IOREF [pin 2] - NC [pin 1] - RESET [pin 3] - VIN [pin 8] ### U2 — [Nodemcu-12E ESP8266](https://www.flux.ai/jharwinbarrozo/nodemcu-12e-esp8266~5t.md) - Part Type: Microcontroller - Manufacturer Part Number: Nodemcu-12E ESP8266 - Datasheet URL: https://components101.com/development-boards/nodemcu-esp8266-pinout-features-and-datasheet **Pins:** - 3V3 [pin 25] - 3V3 [pin 11] - 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 24] - GND [pin 10] - GND [pin 14] - GND [pin 17] - 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 — [MQ-6](https://www.flux.ai/mathzin/mq-6~aj.md) - Part Type: Integrated Circuit - Manufacturer Part Number: MQ-7 - Datasheet URL: https://www.sparkfun.com/datasheets/Sensors/Biometric/MQ-6.pdf - Manufacturer Name: SparkFun Electronics - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A0 [pin 1] - D0 [pin 3] - GND [pin 5] - VCC(5V) [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/sebastian1205/willowy-copper-replicator~ik](https://www.flux.ai/sebastian1205/willowy-copper-replicator~ik).* --- *Generated from [https://www.flux.ai/sebastian1205/willowy-copper-replicator~ik](https://www.flux.ai/sebastian1205/willowy-copper-replicator~ik)*