Wednesday, December 23, 2015
There are many changes, while keeping the current format 5x5cm, I have replaced most of the components. There is new switching power supply, actually two of them. One is for standard DC 5 - 20 V and up to 500mA. Second is for batteries and support voltage from 2 to 5.5 V but only 120mA. There is still present the RS485 half-duplex IC, speaker, and header for 1-Wire touch probe with 2 LEDs. IO Header grew with new pins and most importantly there is place for new RFM69W radio module on the back.
I have plans to use more battery powered nodes that should last long. Either to run them from rechargeable batteries like li-on or li-po or from standard packs or bigger button batteries. Waiting for the boards to get them alive :).