Hi all,
I have a difficult question so please don't get me wrong.
I have a set of RF transmitter/receiver (see photo of receiver). When the transmitter transmits, then the receiver responds by triggering a vibrator not continuouly but periodically (let's say 0,5 sec vibrating and then 0,5 sec...
Hi all,
I have some RF receivers that accidentally I broke one of the resistors they contain (see photo).
This seems to be 1 ohm 20% resistor (3 band - Brown Black Gold) and I tried to replace it with 1.2 ohms 5% (although the multimeter shows 2 Ohm...) with no luck.
May I please ask:
1) Is it...
Hi all,
I have created a little RF transmitter/receiver module (with encoder/decoder). The decoder is the following and of hi quality (R-8PD 4-Bit Decoder IC, http://www.rentron.com/remote_control/Holtek.htm#R8P)
Now, the DataOut of the decoder has +3v when signal is sent by the transmitter...
Hi All,
I am looking for a 12v dc relay that when powered with 12v dc (constant, not instant) will trigger the relay (ie close a circuit) but only for a preset period of time (eg 10 minutes).
In other words, although the 12v dc will power for a long period of time (let's say some hours), the...
