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WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov Click to see Why is this here?
As of August 2018 the State of California has changed the requirements of the Prop 65 law. We now must list on our website any possible chemicals the can cause cancer, birth defects or reproductive problem.
As an example: ABS plastic contains styrene PVC wire insulation can contain Di(2-ethylhexyl)phthalate (DEHP) electrolytic capacitors can contain Ethylene glycol Brass can contain Lead flame retardant pc boards can contain Tetrabromobisphenol A (TBBPA) Aluminum alloys can contain Chromium To put it simply we are a small company and do not have the resources to test every single part, so we list every thing as hazardous. Please recycle all electronic parts responsibly and under no circumstance eat, drink or smoke these parts and wash your hands after touching! |
Product Reviews Click here to review this item | ||
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Fun to play with | |
| Simple and it works. At 5V for both receiver and transmitter (will be different for other voltages): A HIGH on the transmitter data line will result in ~85ms HIGH on the receiver, then falling back to a LOW. There is a propagation delay for both the HIGH and LOW conditions - enough to effect the stability of an asynchronous data stream. A low for about 150us will enable another HIGH condition, making the minimum keying frequency about 12Hz. Startup time (delay after HIGH) is quite variable and depends on how long the off time was. The delay in starting a HIGH and the stability of the transmission are very dependent on the PWM and frequency. Placing my hand near the transmitter has a significant effect in propagation times. I haven't found the optimal values to reliably transmit data ( a 1 and 0), but it does look like 2400 baud could be possible, but 4800 baud might not be practical. Because the transmitter startup time (delay) varies with frequency and the LOW duration, I have yet to identify a stable 1 and 0 condition that can be decoded using standard serial code for moving data. If you want a simple ON-OFF remote, that would be simple enough with a 2.4Khz keying tone. Maybe several functions on several keying tone frequencies? DTFM maybe? | ||
| - Gary, TX | ||
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Missing Coil | |
| I purchased one set to play with. Found the transmitter was miss the coil near the antenna connection. I wound a three-turn coil on a small drill bit and installed it. After which the setup worked as expected. Going to purchase more for an upcoming project. Good price for the set. | ||
| - Jeffrey Harshman, NJ | ||
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Must use data for remote control - price is nice | |
| The transmitter is turned on and off by the data input. The receiver responds to transmitter turn on by outputting a pulse, even when the transmitter is still on. So some sort of encode/decode setup is necessary for this remote pair to work. It would also avoid false triggering by other devices on the same frequency or pulse interference. | ||
| - Mike, OR | ||
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works great with AM signal | |
| This transmits signal through AM for those that dont realize it | ||
