You can control with the remote in the first place Relay 4 on/off but also all the other options from the Garden Timer. It has a power down function, after 20 sec when you press a button it will go to sleep and wait till you press Button 5 or 6. With button 5 [...]
An Infra Red wired Repeater circuit to control appliances from a remote location.
The signal emitted by an IR remote control contains two parts, the control pulses and a modulated carrier wave. The control pulses are used to modulate the carrier, a popular modulation frequency being 36 and 42KHz. The signal is radiated by an IR [...]
This circuit is used to relay signals from an Infra Red remote control in one room to an IR controlled appliance in another room.
The receiver is built around a silicon photodiode, the SFH2030 available from Maplin, order code CY90X. This photodiode is very sensitive and will respond to a wide spectral range of IR frequencies. [...]
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