ESP8266ControllerCircuit
orgTestCodacy11KRepos110MB·repo-9373-diyBMSv4·ESP8266ControllerCircuit/ESP8266ControllerCircuit.kicad_pcb
About the ESP8266ControllerCircuit PCB
ESP8266ControllerCircuit is an open source ESP8266 PCB design by orgTestCodacy11KRepos110MB, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 75 × 30 mm, with 20 components from 16 distinct parts.
Its main chip is the WeMos_mini, from the ESP8266 family. Other key parts include the C32565 and C7605. By type, the board carries 5 connectors, 5 resistors, 3 ICs, 2 LEDs and 1 diode.
It belongs with the power & battery designs in this gallery.
From the project
Do it yourself battery management system for Lithium ion battery packs/cells
Do it yourself battery management system for Lithium ion battery packs/cells
More discussion Open Energy Monitor Forum
If you are looking for version 3 (obsolete) of this project take a look here
THIS REPOSITORY CONTAINS THE HARDWARE FOR THE SYSTEM
If you order a PCB, please use my affiliate link to help support this project JLCPCB
If you find the BMS useful, please consider buying me a beer, check out Patron for more information

Main components on the ESP8266ControllerCircuit
ESP8266ControllerCircuit bill of materials (BOM)
20 components, 16 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | WeMos_mini | wemos-d1-mini-with-pin-header | U1 |
| 1 | C32565 EL3H7(B)(TA)-G | SOP-4_4.4x2.8mm_Pitch1.27mm | U2 |
| 1 | C7605 PCF8574T/3,518 | SOIC-16W_7.5x10.3mm_Pitch1.27mm | U3 |
| 4 | Input | JST_PH_S2B-PH-K_02x2.00mm_Angled | J1, J2, J3, J4 |
| 1 | Optional | Pin_Header_Straight_1x03_Pitch2.54mm | J5 |
| 1 | Current Sensor | Pin_Header_Straight_1x03_Pitch2.54mm | C_SEN1 |
| 1 | Conn_01x02_Female | Pin_Header_Straight_1x02_Pitch2.54mm | DEBUG1 |
| 1 | Conn_01x06_Male | Pin_Header_Straight_1x06_Pitch2.54mm | JRELAY1 |
| 1 | WIFI RST | Pin_Header_Straight_1x02_Pitch2.54mm | WIFI_RST1 |
| 1 | Receive | JST_PH_S2B-PH-K_02x2.00mm_Angled | RX1 |
| 1 | Transmit | JST_PH_S2B-PH-K_02x2.00mm_Angled | TX1 |
| 1 | C2297 COMMS | LED_0805 | D1 |
| 1 | 470R | R_0805_HandSoldering | R1 |
| 1 | 2K2 4K7 | R_0805_HandSoldering | R2 |
| 1 | 220R | R_0805_HandSoldering | R3 |
| 2 | 4K7 | R_0805_HandSoldering | R4, R5 |
ESP8266ControllerCircuit design files
The KiCad project lives in the orgTestCodacy11KRepos110MB/repo-9373-diyBMSv4 repository on GitHub; these links point at the commit this page was built from.
ESP8266ControllerCircuit: common questions
What microcontroller does the ESP8266ControllerCircuit use?
The ESP8266ControllerCircuit is built around the WeMos_mini, from the ESP8266 family.
How big is the ESP8266ControllerCircuit PCB?
The ESP8266ControllerCircuit measures 75 × 30 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ESP8266ControllerCircuit?
20 components, from 16 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the ESP8266ControllerCircuit design files?
From the orgTestCodacy11KRepos110MB/repo-9373-diyBMSv4 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the ESP8266ControllerCircuit design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.
Can I test firmware for the ESP8266ControllerCircuit 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.
More boards in repo-9373-diyBMSv4
ESP32
DIYBMS ESP32 Controller
orgTestCodacy11KRepos110MB
122.5 × 87.6 mm78 parts2LCC-BY-NC-4.00AVR/Arduino
ModuleV450
orgTestCodacy11KRepos110MB
30 × 61.4 mm39 parts2LCC-BY-NC-4.00AVR/Arduino
V4
orgTestCodacy11KRepos110MB
30 × 50 mm38 parts2LCC-BY-NC-4.00ProgrammingAdapter
orgTestCodacy11KRepos110MB
10.5 × 83 mm3 parts2LCC-BY-NC-4.00
Similar boards
ESP8266
ESP8266ControllerCircuit
stuartpittaway
75 × 30 mm20 parts2LCC-BY-NC-4.01.1kESP8266
HASwitchPlate
aderusha
60 × 40 mm8 parts2LMIT738ESP8266
Goatgdo
Kaldek
32.9 × 53.3 mm23 parts2LMIT506ESP8266
RatGDO-OpenSource-Bare-ESP8266
Kaldek
55 × 82.7 mm20 parts2LMIT506ESP8266
RatGDO-OpenSource-D1Mini-ESP8266
Kaldek
47.8 × 63.3 mm12 parts2LMIT506ESP8266
Iaq board
nkitanov
70.1 × 43.2 mm17 parts2LNo license398