After testing most of the hardware to detect short-circuits that could burn the MSP430 pins, I mated the AirMobile board to the TI LaunchPad board
Before proceeding, I had to set the TI LaunchPad's jumpers properly.
The configuration is as follow
- all the jumpers in the isolation jumpers block (J13) have been removed
- all the jumpers on J10 have been removed
- jumper on J11 has been removed
- jumper on J12 has been removed and the header pin "In use" has been connected to the AirMobile board
- jumper on J9 has been removed
I finally connected the Capacitor with the header pin on the AirMobile sensor board so that the capacitor is charged through the LTC3108 circuit
The MSP430 runs a simple application that switches on the Launchpad's red LED when the application itself is running and blinks the Launchpad's green LED when the PGOOD output from LTC3108 is detected high. PGOOD is high when enough power is harvested to provide a stable 5V output
In the video the green LED can not be seen clearly. It starts blinking after 5 to 10 seconds since the Peltier cell is put in contact with the radiator. Please note that in the video the capacitor is not connected, so the MCU is switched off as soon as the Peltier cell is removed from the radiator
