Well, maybe you like the ultracap supply, maybe not. I personally didn't care for it. I used the two LiFePO4 batteries to make a 5V power supply. An LT1963 5V regulator module with the two batteries in series (6.8V). Then use the PurePi as a battery charger or a LiitoKala.
Or you can use the LT1963 with an unregulated linear power supply (you can find these at thrift stores; it usually says Class 2 transformer with DC output). The LT1963 is an excellent regulator. It is an LDO and will work as a 5V supply with voltages over 5.4V . It does not have enough current for your RPi/Innomaker/ProtoDAC, but I wouldn't power the whole stack with a single supply. This is not complicated. IC stuff is overpriced, IMHO.
Split the power from the Innomaker/ProtoDAC with the stacking header with pins 2 and 4 removed. Common ground. Power the RPi with PurePi, a SMPS or even spare power bank.
Or you can use the LT1963 with an unregulated linear power supply (you can find these at thrift stores; it usually says Class 2 transformer with DC output). The LT1963 is an excellent regulator. It is an LDO and will work as a 5V supply with voltages over 5.4V . It does not have enough current for your RPi/Innomaker/ProtoDAC, but I wouldn't power the whole stack with a single supply. This is not complicated. IC stuff is overpriced, IMHO.
Split the power from the Innomaker/ProtoDAC with the stacking header with pins 2 and 4 removed. Common ground. Power the RPi with PurePi, a SMPS or even spare power bank.
Hardware: RPi Zero W | Allo Kali | ProtoDAC TDA1387 X8 | PGA2311 | Icepower 500ASP | Harbeth SHL5
Software: Moode 8.3.3
Source: Win 10 NAS
Software: Moode 8.3.3
Source: Win 10 NAS
