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My son is always bringing home something new for me to try to get working.The latest was a set of rotating lights from an old fire truck. I told him I would clean up & get it working again.There were only two wires coming from each light. Taking the lights apart was one wire from motor to rotate lig...
I got new book today-Electronic Sensors For The Evil Genius-I am trying to find direct source for humidity monitor project (General Eastern Instruments Part#G-CAP2 Humidity Sensor) I get pdf brochures on searches.
- Sat Jun 10, 2006 11:20 am
- Forum: General Discussion
- Topic: 7-Segment LED Display Hookup
- Replies: 5
- Views: 1958
I am building the Digital Tachometer in May 2006 issue of N&V.I never hooked up these 7 segment displays before.Pins 3,5,11,6 are listed as common anodes on data-sheet. Do ALL of these pins (3,5,11,6) go to the 220ohm resistor & 5 volts in schematic? What are pin 6-cathode LHDP & pin 9-cathode RHDP ...