Like the A6 but more 0-10V outputs

[tarajas]

Hi,

Basically none of the dev boards offerred by Kincony have more 0-10V outputs than 2, while also having SSR digital outputs, instead of mechanical relays right?

So the only way is to buy at least minimum an A6 board (it has the I2C port needed for the extenders), then use an extender right? Which extender should I go for?

For the the SSR outputs are the main focus and multiple 0-10V outputs as well.

[admin]

1. if you want multi 0-10v output, you can chose KC868-AP or KC868-D16 , all are 16 channel dimmer controller. KC868-D16 is 16CH 0-10v output board.
2. Yes, now we don't have board with SSR. Do you want SSR use DC control DC load? or DC control AC load?
3. if you want extend by i2c bus. you can chose any i2c module, just software firmware supported, if you use home assistant, just check whether support by ESPHome.

[tarajas]

Hi,

Thanks

1) These are extremely expensive. And for my case I also need to have analog inputs, which these lack.
2) I see, well that is suboptimal. I would like to switch an AC load. Duct heaters to be exact, so the switching frequency would be pretty high, given that "slow PWM" would be the way to go there. Such approach would wear out the mechanical relays quickly and would be annoyingly noisy as well. If the form factor would match then purely replacing the relays on the A6 board with SSRs would solve this. But the PCB mounted SSR cases are of different sizes as far as I could tell. (for me some low current SSRs on board would be fine, with those I could switch some 40Amps standard , DIN-rail heatsink mounted SSRs)
3) "just software firmware supported," This would mean that the extender only works with the KCS firmware?

[admin]

2) maybe in furture, we can design ESP32 SSR relay board, i think you don't want the SOUND of relay.
3) KCS firmware not support extend chip, you can use ESPHome, it support many extend chip. You can check with ESPHome supportted device list.

[tarajas]

Hi,

Thanks.

I also had another idea. Basically Kincony A6 has 2 IO pins imagined to be serving one-wire temperature sensors (like DS18B20).

Those pins can be configured to be used as outputs as well right? So ESP32 digital out high is 2.65V or something right? WIth that I could switch an external DIN rail based SSR. Those have 10mA internally regulating switching current.... so the ESP32 output pin should tolerate directly switching them.

Is that feasible or a crazy idea maybe?

[admin]

KC868-A6 2 free GPIO can use for INPUT or OUTPUT. whether can drive SSR, i am not sure. that need test. these 2 GPIOs already have pull up resistance on PCB.

[tarajas]

Thanks, okay, I will test it out, hopefully that is a workable solution. Then I can use the 0-10V outputs, those 2 pieces for fans and the setup may work out in the end.