UPS HAT Raspberry Pi Zero DFR0528 How to get Firmware Version?

sarnus33 2021-01-29 02:57:01 833 Views4 Replies
Hey guys,
can u tell me how to get the Firmware Version from die I2C.

I tried this.
Code: Select all
import smbus addr=0x10 #ups i2c address bus=smbus.SMBus(1) #i2c-1 firmware=bus.read_byte_data(addr,0x02) vcellH=bus.read_byte_data(addr,0x03) vcellL=bus.read_byte_data(addr,0x04) socH=bus.read_byte_data(addr,0x05) socL=bus.read_byte_data(addr,0x06) capacity=(((vcellH&0x0F)<<8)+vcellL)*1.25 #capacity electricity=((socH<<8)+socL)*0.003906 #current electric quantity percentage print("firmware=", firmware) print("capacity=%dmV"%capacity) print("electricity percentage=%.2f"%electricity)

But im kinda missing something.

Thanks for your help

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2021-02-01 15:15:41 Of course it's wrong. 223 is 0xDF, that's should be the value in 0x01.
I suggest you use

Code: Select all

list = bus.read_i2c_block_data(addr, 0x00) 
print(list)

This instruction will get a list, including the data of 0x00, 0x01, 0x02 and so on 347945801

2021-01-29 18:09:05 The returnvalue is 223. Is that right ? How i interpret this then?

Ty for your help

sarnus33

2021-01-29 13:48:30 There is no problem with the method you use, but I don’t know what the value you return is, and I don’t know why you think it’s wrong 347945801