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STD Data transmitter via 3.5mm audio
Mode: Editors' pick
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Update time：
2021-04-11 23:41:00
Creation time：
2018-02-26 11:40:28
Description
A circuit that can be used to transmit data over 433MHz, 315MHz, or other frequencies (transmitter is not included). In order to operate this, you can use your mobile phone's audio jack (3.5mm audio interface). The transmitter needs to be like this ![315MHz 3-pin transmitter][1]
[1]: https://www.atomsindustries.com/ASD1273
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | AUDIO_JACK_3.5MM_PTH | AUD | AUDIO-JACK | 1 |
| 2 | 10k | R1_10K,R2_10K,R3_10K | AXIAL-0.3 | 3 |
| 3 | 2N2222 | T1,T2,T3,T4 | TO92-EBC-OVAL | 4 |
| 4 | Zener 1W | Z1 | ZENER 1W | 1 |
| 5 | 440 | R4_440,R5_440,R12_440 | AXIAL-0.3 | 3 |
| 6 | LED-5MM | LED_AUD,LED_BAT,LED_TX | LED-5MM/2.54 | 3 |
| 7 | 4.7u | C1_4_7U | RAD-0.1 | 1 |
| 8 | 1k | R7_10K,R6_10K,R9_1K,R10_1K,R11_1K | AXIAL-0.3 | 5 |
| 9 | POT | POT | MONOPOT | 1 |
| 10 | 5k | R8_5K | AXIAL-0.3 | 1 |
| 11 | 1N4148 | D1 | DO35-10 | 1 |
| 12 | 220u | C2_220U | RAD-0.1 | 1 |
| 13 | Headers Pins 1*4P | VCC_IN,GND_IN | HDR-4X1/2.54 | 2 |
| 14 | Header2.54mm 1*3P | TRANSMITTER | HDR-3X1/2.54 | 1 |
| 15 | 10u | C3_10U | CAP-D5.0XF2.0 | 1 |
| 16 | NE5532P | OPAMP | DIP-8 | 1 |
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