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United Kingdom, Belfast
1 Level
725 Review
41 Karma

Review on MazerPi Raspberry Switch Indicator Supply by Isaac Islam

Revainrating 3 out of 5

Pi ONLY and will not work with all devices

I'm adding two stars because these switches seem pretty standard and I'll admit they work for Raspberry Pis. However, the design isn't very useful as you still need a dedicated Raspberry Pi power supply and it only works reliably to power the Pi. so now i'm not sure what to do with four of them. hey At least it has an LED. TL; DR: Your optional 18W phone chargers (PD) will not work with this. A non-Pi device will be confused at how much current it can draw and charge slowly. I would only suggest these for: 1) a Pi 4 power bank that doesn't have a switch 2) a (good and powerful) USB-A charger with a USB-A to USB-C cable 3) some of the very earliest USB phone chargers -C (non-PD Type-C power does not exceed 15W). There are two problems here: 1) The switch itself has a 56kΩ pullup resistor on one of its CCs. This completely breaks Type-C and overrides any actual power of the block to be the lowest available (1.5A = 7.5W). 2) The input port does not have a 5kΩ pull-up resistor on any of its CCs. This means that PD power supplies (and smarter non-PD power supplies) won't deliver power because they don't recognize the device. Another little oddity is that these switches have a DCP 1.2 indicator (D+ and D- shorted). This is a legacy display intended for USB-C power adapters that can be used by Micro USB devices. not sure how this will help here.

Pros
  • Decent performance
Cons
  • Other