Energy Harvester - LTC3588 Breakout It attaches to Pi by

It attaches to Pi by way of one of the small sockets on the board upper surface and uses the dedicated CSi interface

GPS L1 C/A code

7- Digital I/O Pins: 20

The SIM card circuit to increase the SMF05C ESD chip

a power jack

Energy Harvester - LTC3588 Breakout It attaches to Pi byThis breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only for harvesting piezoelectric energy, but solar energy as well. There is a bridge rectified input for piezo elements (PZ1 and PZ2) and a direct input (VIN) for DC sources. Both are clamped to 20V. In addition, the board can simply be used as a standalone nanopower buck regulator.