I recent learned that the latest generation of USBC power meters...

Posted 2022-11-23 | Back to blog index

I recent learned that the latest generation of USBC power meters can actually read the E-marker so I picked one up from Aliexpress. Pretty neat, and actually useful, I didn't realize which cables I had that were Gen1 vs Gen2 vs Thunderbolt3

E-marker detected: Passive JoinSoon  20V@5V USB3.2 gen1 E-marker detected: Passive Yellow Knife 20V@5V USB2.0 E-marker detected: Passive Sumitomo 20V@5V USB3.2 Gen2

Adding a picture of what it looks like enumerating the capabilities of a 100W USB PD charger

A small device with an OLED display showing the voltages and USB charging standards supported by a USB PD power supplyFastchargeApple2.4A Samsung 5V-2A = greenQC3.0-3.6V~12V DCP-1.5A = greenQC2.0-9V-12V = green 10V QC4 = redSamsung AFC-9V-12V = redHuawei FCP = redSuperVOOC-10V = redPD3.0 100W OK@1.00.61 = red

As well as the USB PD capability listing

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