UPS-Lite Raspberry Pi Zero case

thingiverse

Remix for the Raspberry Pi Zero (W) mounted on a UPS-Lite. Printed with 0.2mm layers, no supports. Some action : https://www.youtube.com/watch?v=IbQ9D2eIZqA https://www.youtube.com/watch?v=ZrIysoZl2jI **UPS-Lite software is available here** https://github.com/linshuqin329/UPS-Lite **Here is some Node Red code to retrieve Voltage and battery gauge :** *(>Import >Clipboard)* <code>[{"id":"4e29f32.301630c","type":"i2c in","z":"87a082cf.723f1","name":"Volts","address":"54","command":"2","count":"2","x":408,"y":563,"wires":[["b27088d9.1b3cf8"]]},{"id":"1ad1c751.ef6e09","type":"i2c in","z":"87a082cf.723f1","name":"Batt%","address":"54","command":"4","count":"2","x":408,"y":603,"wires":[["8dc9b062.75247"]]},{"id":"b27088d9.1b3cf8","type":"function","z":"87a082cf.723f1","name":"get_volts","func":"var data=msg.payload[0]*256+msg.payload[1];\nmsg.payload=((data*1.25)/1000/16).toFixed(3)*1;\nmsg.topic=msg.payload;\nreturn msg;","outputs":1,"noerr":0,"x":538,"y":563,"wires":[["1ad1c751.ef6e09","7b80f0c.4a25b1"]]},{"id":"8dc9b062.75247","type":"function","z":"87a082cf.723f1","name":"get_batt%","func":"var data=msg.payload[0]*256+msg.payload[1];\nmsg.payload=(data/256).toFixed(3)*1;\nreturn msg;","outputs":1,"noerr":0,"x":538,"y":603,"wires":[["1ace7efa.d562a1","c2fc9916.4b0e78","90ac1583.a8ddb8"]]}]</code> **And some Python based on the original code** <code>#!/usr/bin/env python import struct import smbus import sys import time def readVoltage(bus): "This function returns as float the voltage from the Raspi UPS Hat via the provided SMBus object" address = 0x36 read = bus.read_word_data(address, 2) swapped = struct.unpack("<H", struct.pack(">H", read))[0] voltage = swapped * 1.25 /1000/16 return voltage def readCapacity(bus): "This function returns as a float the remaining capacity of the battery connected to the Raspi UPS Hat via the provided SMBus object" address = 0x36 read = bus.read_word_data(address, 4) swapped = struct.unpack("<H", struct.pack(">H", read))[0] capacity = swapped/256 return capacity bus = smbus.SMBus(1) # 0 = /dev/i2c-0 (port I2C0), 1 = /dev/i2c-1 (port I2C1) print ("%.2f V|%i%%" %(readVoltage(bus),readCapacity(bus)))</code>