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+--- Forum: KC868-A16 (https://www.kincony.com/forum/forumdisplay.php?fid=25)
+--- Thread: K868-A16 433 RF MHz receiver (/showthread.php?tid=1756)
RE: K868-A16 433 RF MHz receiver - Razvan - 03-17-2022
(03-17-2022, 11:13 PM)admin Wrote: i seen the video, now take a photo of your A16 pcb receiver module.
These are the pictures
RE: K868-A16 433 RF MHz receiver - admin - 03-17-2022
your transmiter module is install direction is reversed, it's wrong. i suggest you remove your transmiter module (the smallest square) for a test.
RE: K868-A16 433 RF MHz receiver - Razvan - 03-18-2022
(03-17-2022, 11:59 PM)admin Wrote: your transmiter module is install direction is reversed, it's wrong. i suggest you remove your transmiter module (the smallest square) for a test.
I did the test without the transmitter module but the codes are still not visible in the LOG
RE: K868-A16 433 RF MHz receiver - admin - 03-18-2022
Do you have an oscilloscope?
RE: K868-A16 433 RF MHz receiver - Razvan - 03-18-2022
(03-18-2022, 01:26 PM)admin Wrote: Do you have an oscilloscope?I would like to have one but unfortunately I don't, I think I will put one on the next shopping list from China.
RE: K868-A16 433 RF MHz receiver - admin - 03-18-2022
i think you can test whether have signal output in RF 433MHz receiver's "DATA" pin.
RE: K868-A16 433 RF MHz receiver - Razvan - 03-18-2022
(03-18-2022, 02:07 PM)admin Wrote: i think you can test whether have signal output in RF 433MHz receiver's "DATA" pin.
Can you be more explicit please? The RF receiver has 4 pins. From what I saw one of them is connected to GND through a resistor on the back of the PCB. Between which pins should I measure the signal and what should I expect to see?
RE: K868-A16 433 RF MHz receiver - admin - 03-18-2022
the pin "DATA" with "GND" , whether voltage will changed when you press the remoter's any button.
RE: K868-A16 433 RF MHz receiver - Razvan - 03-18-2022
(03-18-2022, 09:58 PM)admin Wrote: the pin "DATA" with "GND" , whether voltage will changed when you press the remoter's any button.
I did the test. No button pressed on the remote control the values are: GND to DATA = 3.57 V, DATA to VCC = 1.38 V.
When any button on the remote control is pressed the values are: GND to DATA 3.59 V (sometimes 3, 60 V), DATA to VCC 1.38 V.
The conclusion is that when you press a button on the remote control the only value that changes is between GND and DATA, from 3.57 V it becomes 3.59 V or 3.60 V
RE: K868-A16 433 RF MHz receiver - admin - 03-18-2022
1. Monday confirm with you. Because use oscilloscope is the best way, now you using Multimeter measurement.
2. Do you only have 1 433MHz receiver module? no another module for a test?
3. Do you have connect the receiver module with wrong reverse install as same as the transmiter module before?