OpenEVSE

OpenEVSE
Name	OpenEVSE car charger
Zone	Infrastructure
Owner	i3Detroit
Make Model	OpenEVSE v4 and nodemcu
Part Number	n/a
Date Acquired	2015-01
Storage Location	By the bay door
Authorization Required	No
Status	Running
Value	$350
IP Address	10.13.107.80
MAC Address	2C:3A:E8:35:D9:7C
Hostname	ESP_35D97C
Documentation	https://openev.freshdesk.com/support/home https://github.com/OpenEVSE/ESP8266_WiFi_v2.x#openevse-status-via-mqtt
Other References	http://files.openevse.com/OpenEVSE_Plus_v4.pdf https://dozuki-guide-pdfs.s3.amazonaws.com/pdf/openevse/guide_14_en.pdf https://openevse.dozuki.com/Guide/Testing+Basic+and+Advanced/12 https://openevse.dozuki.com/Guide/Serial+Communications+with+OpenEVSE/13

Intro

DIY car charger for the space. Built from a kit, works great.

Instructions

If there is garbage on the screen, reboot using the fuse box above the device

Maintenance Info

wifi module is running https://github.com/OpenEVSE/ESP8266_WiFi_v2.x/commit/53443e2075fa1c7b32db4b261981f7f82df47cf2 The value on line 133 of src.ino is chagned from 30000 to 120000 to lower the frequency of mqtt status updates

NB It needed to be compiled with this version of the ESPAsyncTCP library: https://github.com/me-no-dev/ESPAsyncTCP/commit/9b0cc37cd7bdf4b7d17a363141d2e988aa46652c

FAQ

MQTT Data Reporting

• amp: reports Amps * 100
• wh: reports Watt-seconds
• state:
  • 1:"Not Connected"
  • 2:"EV Connected"
  • 3:"Charging"
  • 4:"Vent Required"
  • 5:"Diode Check Failed"
  • 6:"GFCI Fault"
  • 7:"No Earth Ground"
  • 8:"Stuck Relay"
  • 9:"GFCI Self Test Failed"
  • 10:"Over Temperature"
  • 254:"Sleeping"
  • 255:"Disabled"

ToDo

Maybe replace the i2c cable with something better. There are parts to build another one that has not been completed.