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ale1800
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I suggest you to buy also the right angle pin I soldered on the RF modules.
- I used [these](https://www.lcsc.com/product-detail/_XFCN-_C781823.html) for the 3-pin transmitter module (STX883s).
- I used [these](https://www.lcsc.com/product-detail/_XFCN-_C781823.html) for the 3-pin transmitter module ([STX883Pro]((https://www.nicerf.com/ask-modules/ask-transmitter-module-stx883pro.html))).
They have the standard pitch of 2.54 but they are thin enough to be inserted in the female connector on the board **You have to buy at least 4 (2x2)** and then cut one.
- For the receiver module (SRX883s), pins are [these](https://www.lcsc.com/product-detail/_HCTL-_C2905972.html). Also with these you have to cut one (I connected it to the board only with 5 pins out 6)
- For the receiver module ([SRX883Pro](https://www.nicerf.com/ask-modules/ask-receiver-module-srx883pro.html)), pins are [these](https://www.lcsc.com/product-detail/_HCTL-_C2905972.html). Also with these you have to cut one (I connected it to the board only with 5 pins out 6)
Pay attention if you need the RF modules in 433MHz or 315MHz version. And then buy the spring antenna accordingly, like [these ones](https://www.lcsc.com/products/Antennas_912.html).
If you let the manufacturer assemble the board, remember to ask them to bend the IR leds to 45°, otherwise the will solder them straight.