Idea: cheap multichannel remote control system using IC 555 (transmitter), 2917 and 3914 (receiver). Is this feasible?
Can we make a cheap multichannel remote control system using IC 555 as frequency generator for transmitter (with several buttons connected to different resistors to yield different frequencies to blink the IR led), and as the receiver we use IC 2917 to convert freq to voltage and feed it to IC 3914 as the channel selector? The 3914 datasheet tells that it has 'dot mode' beside the bar mode. Do you think it's feasible? Care to help with the schematic diagram? Thanks a lot.
P.S. This vague idea is inspired by the Led tachometer instructable found in here.