Editor Version ×
Standard

1.Easy to use and quick to get started

2.The process supports design scales of 300 devices or 1000 pads

3.Supports simple circuit simulation

4.For students, teachers, creators

Profession

1.Brand new interactions and interfaces

2.Smooth support for design sizes of over 30,000 devices or 100,000 pads

3.More rigorous design constraints, more standardized processes

4.For enterprises, more professional users

Std EditionESP-12F Current Logger

Profile:ESP-12F Current Logger (INA226)

License: Public Domain

Published Time:2020-12-08 20:20:34
  • 1.3k
  • 4
  • 6
Description

ESP8266/ESP-12F current logger with INA226 (I2C)

I built this to measure and log microamp currents over a time period, and access the data via wifi.

It sort of works right now, but the resolution is poor (100uA). I'll play around with it when I have more time.

Make sure to calculate the maximum amount of current you can put through it yourself, depending on the shunt resistor you use, because I'm too lazy for it  right now :)

The INA226 IC is kind of hard to hand solder, but it's possible with flux and patience. No need for solder paste/hot air.

The 3V3 SPI connector is meant for a SD card breakout, but you could also connect a 3V3 SPI display.

The 3V3 voltage regulator can supply up to 1000mA.

The pins necessary for flashing via serial connection are accessible. You can connect a FTDI Basic board for flashing. Short the "FLASH" jumper to flash it via serial.

You can use this library to access the INA226: https://github.com/peterus/INA226Lib/blob/master/examples/Simple/Simple.ino

Here's a working Arduino sketch thrown together by me: https://gist.github.com/Miraculix200/33131e377772574fe5811087e9af2e59

Sources for this schematic

https://oshwhub.com/SWX2507726389/ina226-usb-dian-ya-dian-liu-biao

http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fina226

Photos

R0039423.jpgR0039425.jpgScreen Shot 01-11-21 at 01.45 PM.png

Documents

PCB_2020-12-08_15-06-02

Open in editor
Project Attachments
Empty
Project Members

服务时间

周一至周五 9:00~18:00
  • 0755 - 2382 4495
  • 153 6159 2675

服务时间

周一至周五 9:00~18:00
  • 立创EDA微信号

    easyeda

  • QQ交流群

    664186054

  • 立创EDA公众号

    lceda-cn