Hi,
Just wanted to check before laying out yet more money.
Does anyone see any problem with powering the mini and several 74HC595 chips all off the same
3.7v ( could be as high as 4.2 I believe) from a LiPo battery
I seem to remember reading somewhere that there is no maximum Vcc, or at least it would be a lot higher - just a minimum based on the
clock frequency . I would be drawing very little current from the arduino , but about 50 mA average, 100mA max
through the 74HC595s, direct from the battery.
I plan to bypass each 74HC595 with 100 nF ceramic.
Thanks
Rob