I'm neck deep in designing interfaces between low-cost USB digital output modules and various hardware. I seem to be having a hard time relay modules that will work with 5V at 8.5mA. Since I'm looking at up to 24 outputs I don't want to solder discrete components to a protoboard. I really like the Omega relay boards that I have used in the past but they are very expensive. Any suggestions for a less expensive alternative? Thanks in advance.
↧