SDRBrent

The V+ input pulls up to several hundred mA depending on which relays you’re using and how many of them are enabled at once. For instance, the 5V relays pull 72 mA and the 24V relays pull 15 mA when closed, so with all 7 enabled you’ll be pulling ~504 mA with the 5V and ~105 mA with 24V.

The “In” inputs are used to enable transistors and pull…[Read more]