BLZphotos
IMG_4823cafr900x675s
Closer view of switches and indicator lights. HiViz users will recognize the little potentiometer wheels for adjusting the delay and sensitivity of the Multi-Trigger circuit. The two LED's from that circuit are mounted above them. I also added the switch on the right to replace the wire connecting the photogate with the delay unit for disabling the trigger outputs. At the left are power buttons to both microcontroller and trigger circuits and below that a power button to manually open the valve for purging the line, and start button to run the program for dropping one or two drops. The blue DIP switches are used to set the number of drops, delay between drops and drop size - see label and program listing for more details.
IMG_4823cafr900x675s
Closer view of switches and indicator lights. HiViz users will recognize the little potentiometer wheels for adjusting the delay and sensitivity of the Multi-Trigger circuit. The two LED's from that circuit are mounted above them. I also added the switch on the right to replace the wire connecting the photogate with the delay unit for disabling the trigger outputs. At the left are power buttons to both microcontroller and trigger circuits and below that a power button to manually open the valve for purging the line, and start button to run the program for dropping one or two drops. The blue DIP switches are used to set the number of drops, delay between drops and drop size - see label and program listing for more details.