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+--- Forum: KC868-A8 (https://www.kincony.com/forum/forumdisplay.php?fid=23)
+--- Thread: KC868-A8 Schematic (/showthread.php?tid=7221)
KC868-A8 Schematic - DarthWeber - 12-13-2024
Dear Support,
could you please post the schemtaic of the 1.6 boards? I am confused with the pins 32,33, 36, 39 and their relation to S1,2,3,4 which seems to be different in v1.5. I am looking for a pin direct connected to the esp32 - without pull-up/down.
I tried to connect an AM312 to one of the pins S1-4 but it does only work with an external pull-down of 4.7k. This sensor ouputs digital 3.3V as HIGH and should be connected direct to a pin without pullup or down.
Thanks,
Tom
RE: KC868-A8 Schematic - admin - 12-13-2024
https://www.kincony.com/download/KC868-A8-schematic.pdf
RE: KC868-A8 Schematic - DarthWeber - 12-13-2024
Thanks, but in that schematic DAT_TEP3 and 4 seems to be not connected on the ESP32 since they are red crossed?
RE: KC868-A8 Schematic - admin - 12-13-2024
see photo.
RE: KC868-A8 Schematic - DarthWeber - 12-13-2024
Thank you. Sure, this is the same for 1.6 ? I connected my PIR to S3 but i got the signal on GPIO32. I use tasmota with this config:
{"NAME":"KC868-A8","GPIO":[32,0,1120,0,640,608,0,0,0,1,1,1152,0,0,5600,0,0,0,0,5568,0,0,0,0,0,0,0,0,1,1,0,0,1,0,0,1],"FLAG":0,"BASE":1}
RE: KC868-A8 Schematic - admin - 12-14-2024
sorry, my mistake. about KC868-A8 V1.6 PCB version:
S1: GPIO14
S2: GPIO13
S3: GPIO32
S4: GPIO33
RE: KC868-A8 Schematic - tanoshimi - 12-17-2024
(12-13-2024, 05:33 AM)DarthWeber Wrote: Dear Support,
could you please post the schemtaic of the 1.6 boards? I am confused with the pins 32,33, 36, 39 and their relation to S1,2,3,4 which seems to be different in v1.5. I am looking for a pin direct connected to the esp32 - without pull-up/down.
I tried to connect an AM312 to one of the pins S1-4 but it does only work with an external pull-down of 4.7k. This sensor ouputs digital 3.3V as HIGH and should be connected direct to a pin without pullup or down.
Thanks,
Tom
I had a similar problem recently and had to desolder the SMD pullup resistors from the board (and the 100Ω series resistor), then make a solder bridge across the pads so that the temrinals were a direct connection to the GPIO pins of the ESP32. I hope that Kincony reconsider this in future designs, because it's a weird and frustrating limitation to have those permenant pullups installed.
RE: KC868-A8 Schematic - admin - 12-17-2024
Yes, now our new model will have two different free GPIO. some have pull-up resistor, some without resistor.