CryptoTerminal v2 is working...
The blockchain CryptoTerminal version 2 board (ECTv2) is working. The photo shows the removable smartcard (javacard EAL5+) performing blockchain transaction signatures. It uses a TFT-LCD IPS touch color (16 bits, 320x480) screen. This allows more fun for user interface. Power consumption is about 130mA under 5V. So ECTv2 works with OTG cable plugged in smartphone. The next step is to design an attractive case.