Color display with Arduino and ST7789 for CS5460A-based plug power meter

CS5460A-based plug power meter color display

*** Be sure you know what you are doing around lethal mains-level voltages. Use at your own risk! ***

Features:
- 8 values displayed on 2 screens
- no buttons, screens are changed automatically
- power min/max with times when they were observed
- big high resolution software generated 7-segment font for numbers
- sniffing the SPI CLK and MISO from CS5460A chip to read voltage, current and power
- required: DigiFont and RREFont libraries (available on my GitHub)
- in case of compatibility issues use Arduino IDE 1.6.5
- use only ENABLE_RRE_16B = 1 in RREFont.h, other ENABLEs should be 0 to save memory

Project code:

If you find it useful and want to buy me a coffee or a beer:

[이현인-bi]

That's amazing. The program sharing and skills we need have surprised us. Thank you.

[hafo]

Very nice project! I would like to add some type of wireless communication, for galvanic insulation.

[MrArif]

Its awesome.👌
Please, Can you make with pzem04t v3 power meter.

[renelefebvre]

Hi, from Lublin ! Super work . I like all your vidéos with displays and STM 32, but many time it necessary to look for files.h :-)
Do you speak french, I am french and I live betweem Lublin and Siedliska ( near Hrebenne )
Bye

[piotrw]

how did you resolved the circuit isolation (cs5460A chip is working with ground set as L - thus it uses HOT side of AC). Are You using optoisolators on SPI interface?

[luisvelez]

Hi, is there a library to directly comunicate with the CS5460A to obtein the parameters and send calibration to the chip?

[antony]

Could i know which Arduino board u are using?

[rompipelotas]

I CAN'T FIND THE DigiFont.h LIBRARY....??