That’s awesome about the e-ink NFC. So interesting to see where the tech has gone and novel use cases for NFC energy harvesting. That’s unfortunate that you won’t be able to see it through the skin, but we kind of expected that. We’ll see if anyone makes any progress with e-ink tattoos.
The litaf will have several RGBW LEDs. The testing @NiamhAstra does during the course of the development will help determine how many NTAG I2C Plus or NTAG 5 energy harvesting chips can be put in one field to maximize power delivery.