# mcp30XX chip for esp8266 ( wemos D1 adaptor board for emontx shield) **URL:** \ **Category:** Hardware\ **Created:** [24 March 2017 05:03 UTC](https://community.openenergymonitor.org/t/mcp30xx-chip-for-esp8266-wemos-d1-adaptor-board-for-emontx-shield/3538 "2017-03-24T05:03:29Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![mwalker](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/m/a9adbd/32.png) [@mwalker](https://community.openenergymonitor.org/u/mwalker)\ **Post date:** [25 March 2017 22:01 UTC](https://community.openenergymonitor.org/t/mcp30xx-chip-for-esp8266-wemos-d1-adaptor-board-for-emontx-shield/3538/7 "2017-03-25T22:01:54Z")
@stephen you might want to have a look at what @overeasy is doing with his IotaWatt: > [@IotaWatt Update - nearly complete](https://community.openenergymonitor.org/t/iotawatt-update-nearly-complete/2989): > > For those following development of this appliance, it’s nearing the design goals. Now the open eMonCMS graphing application interfaces directly to the ESP8266 on local WiFi. You can use it with or without connecting to an external service like eMonCMS. There are advantages to both. Response time generating local graphs is about 10-15 seconds. The ESP software runs without modification except that the [emoncms.org](http://emoncms.org) url is hard coded. So it’s a one line change. Several lines of Java… > [@ESP8266 WiFi power monitor](https://community.openenergymonitor.org/t/esp8266-wifi-power-monitor/1692): > > I noticed others working with the ESP8266 processor, and wanted to share my device which is working but has a list of improvements that I’d like to make before calling it anywhere close to done. I’m currently using the Adafruit unit with the Arduino IDE as they document. The board uses a couple of MCP3008 10bit ADC’s to do data acquisition. The ESP reads them over SPI at 2Mhz for a sample rate of 347 voltage/current reads per 60Hz cycle. The 80Mhz 32 bit processor is in a whole dif… --- _[View the full topic](https://community.openenergymonitor.org/t/mcp30xx-chip-for-esp8266-wemos-d1-adaptor-board-for-emontx-shield/3538)._