EnvMonitor
About the EnvMonitor PCB
EnvMonitor is an open source ESP8266 PCB design by kennySzhucheng, published on GitHub. It is a 2-layer board measuring 80 × 60 mm, with 27 components from 18 distinct parts.
Its main chip is the ESP8266-01S, from the ESP8266 family. By type, the board carries 9 resistors, 5 capacitors, 4 connectors, 3 switches, 3 diodes and 1 speaker.
It belongs with the iot & wireless and displays & leds designs in this gallery.
From the project
🌡️ 智能环境监测站 | STM32F103C8T6 + FreeRTOS + ESP8266 | 温湿度/光照/测距/OLED菜单/ThingSpeak上云 | 从裸机到RTOS到KiCad PCB全流程
一个从零开始搭建的嵌入式 IoT 项目：裸机固件 → FreeRTOS 重构 → KiCad 画板 → 嘉立创打样，走完嵌入式产品全流程。
1. 用 CubeMX 打开 EnvMonitor.ioc 重新生成代码（如需要） 2. EnvMonitor\MDK-ARM\EnvMonitor.uvprojx → Keil 打开 3. 确认 Include Paths 包含：Drivers/、App/、FreeRTOS/include、FreeRTOS/portable/RVDS/ARMCM3` 4. Build (F7) → 0 Error → Download (F8)
1. 注册 https://thingspeak.com → Create Channel → 4 Fields 2. 将 Write API Key 填入 esp8266.h 中的 THINGSPEAKAPIKEY 3. 修改 WiFi 账号密码：esp8266.h → WIFISSID / WIFIPASS
EnvMonitor bill of materials (BOM)
27 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DHT22 | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | OLED+BH1750 | PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | HC-SR04 | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | ESP8266-01S | PinHeader_2x04_P2.54mm_Vertical | J5 |
| 1 | CoreBoard_L | PinHeader_2x20_P2.54mm_Vertical | H1 |
| 1 | CoreBoard_R | PinHeader_2x20_P2.54mm_Vertical | H2 |
| 1 | Buzzer | PinHeader_1x03_P2.54mm_Vertical | LS1 |
| 1 | KEY1 | SW_PUSH_6mm | SW2 |
| 1 | KEY2 | SW_PUSH_6mm | SW3 |
| 1 | KEY3 | SW_PUSH_6mm | SW4 |
| 1 | LED_红 | LED_D3.0mm | D2 |
| 1 | LED_黄 | LED_D3.0mm | D3 |
| 1 | LED_绿 | LED_D3.0mm | D4 |
| 3 | 100nF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C18, C19, C20 |
| 2 | 100uF/10V | CP_Radial_D5.0mm_P2.50mm | C21, C22 |
| 3 | 4.7k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R4, R5, R6 |
| 3 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R7, R8, R9 |
| 3 | 330 | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R10, R11, R12 |
EnvMonitor design files
The KiCad project lives in the kennySzhucheng/EnvMonitor repository on GitHub; these links point at the commit this page was built from.
EnvMonitor: common questions
What microcontroller does the EnvMonitor use?
The EnvMonitor is built around the ESP8266-01S, from the ESP8266 family.
How big is the EnvMonitor PCB?
The EnvMonitor measures 80 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the EnvMonitor?
27 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the EnvMonitor design files?
From the kennySzhucheng/EnvMonitor repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EnvMonitor design in my own project?
The repository has no license, so all rights stay with kennySzhucheng. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the EnvMonitor without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.
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