ESP32 16CH POE Relay Module For home assistant & Tuya - KinCony E16P

[@TradieTrev]

You're getting really good at designing these boards KinCony! You got nearly everything I want in an IoT board, but you're missing the NC contact and better emf protection on the relays. Couldn't hurt to throw on a plastic lid for those spicy parts either lol? I wouldn't doubt that we couldn't get approval for the c-tick to enter the Australian market here, I'd loved to legally install them into peoples homes.

[@KinCony]

thanks for your suggestion. because add NC will let pcb larger. usually use NO is enough.

[@liudas000]

Hello - I already found one solution, but there was quite challenging, because there are not much POE modules based on ESP32 for mainly inputs with pull-up resistors and only single output as a replacement of home alarm system. I beleave that today it would be good market for fire and alarm system based on Home assistant or similar..

[@SergioIO79]

Excellent work with this board. One question, have tou considered using MCP23017 to have more I/O? Is it a worst option than ehat you are using? Just asking to learn. Thank you🎉

[@KinCony]

because MCP23017 is hard to buy in China. PCF8574 is easy to buy.

[@wellingtonfreirerosa]

If I want more than 16 outputs, is there an expansion board to be connected to the E16P or would it be necessary to purchase two individual E16Ps? Can I use an RJ45 network cable to make this card talk to Alexa directly or do I need another device? Can I install TASMOTA firmware on this board to use MATTER and add it directly to ALEXA? Thank you in advance for your questions, I'm from Brazil and the only option to purchase in my country would be via Aliexpress, which unfortunately, due to the current government in Brazil, has greatly increased the value of taxes, reaching + 92%, a 200 dollar product paid plus 184 dollars in tax. So I can't buy it for testing, I have to buy it now with the certainty that everything will work as expected. Thanks.

[@KinCony]

1. if you want extend relay, you can use our i2c extend relay module -DO8 or you can add the second E16P by network cable is ok, second way is more stable. 2. we have made tasmota MATTER firmware, so that E16P can work with Alexa directly. you can download tasmota firmware BIN file from KinCony's forum.

[@AugustineAriola]

What is the name of the relays you used? It is important for maintenance in my country. The name and part numbers of the relays is exactly what I want to know.

[@KinCony]

it's high quality OMRON relay

[@SergioIO79]

What Poe module are tou using? Do you have a link? Thank you

[@KinCony]

just DC12v or DC12v POE module, it according to relay's coin work voltage.

[@abidali-zu3ew]

Do you have dealer in DUBAI AND how can install software

[@KinCony]

we sell from China

[@darabotics]

Your AliExpress store is not opening.

[@KinCony]

today will upload E16P link.

[@KinCony]

order link: www.aliexpress.com/item/3256805771041741.html

[@XiaZ]

Your inputs are using Optos which is good, but they still share common ground, try using a DC-DC converter to separate the ground. Your I2C trace was routed directly under PoE module's transformer, this is bad for the signal, I've had a problem with a similar design in the past, so try to avoid it if you can. You use I2C IO expander but didn't route the interrupt pin to the MCU, if you just want to control low speed relay and polling some inputs without needing interrupts, why don't just use some cheap shift-registers? it'll be harder to mess up the signal too. Here's how you use just 3 pins to expand your I/O up to any number in exchange for speed: DATA is routed to the shift out (e.g., 74HC595) array first. The last output is then route to the first shift in (e.g., 74HC165) array. The output of the last register in the shift in array is then route back to the DATA line with a 10k series resistor. CLK and LATCH can use the same line. In the code: dip the LATCH to latch inputs and then leave it high loop switch DATA pin mode to input and read 1bit of inputs switch DATA pin mode to output and set 1bit of outputs rise the CLK high and then leave it low repeat the loop until all registers are set/read dip the LATCH to latch output and then leave it high switch DATA pin mode to input If you can spare one more pin, use separate pin for DATA in/out and skip the pin mode switching can improve the speed.

[@KinCony]

thanks for suggestion about i2c track with POE module. we design i2c circuit according to ESPHome, it have used interrupt pin. if we use cheap shift-registers, such as 74HC165, if one chip is broken, all ports will become bad. but use I2C extend chip, if one I2C chip is broken, others GPIOs also can work. just cost higher than shift-registers chip.

[@XiaZ]

@@KinCony According to your schematic on the website, all your PCF8574P's nINT pins are pulled high via 10k resistors, but none of them was routed to the MCU. Regarding the point of fail; yes, if one of the shift register is bad, all of them will stop functioning. But in case of a bad I/O IC, you will always want to replace the IC asap anyway, so it being cheaper (by 4x) means you save more in the long run by using shift-registers. Also, shift-registers are a lot less complicated, which mean they last longer too, assuming you design your circuit according to datasheet and don't overload the output it will last longer than the ESP itself.

[@KinCony]

Your words make sense, but we don't want to blindly pursue low costs and are more concerned about reliability@@XiaZ

[@oTruong]

Can we connect high load with AC contactor to this board?

[@KinCony]

sure, add extend contactor for large current load , no problem.

[@ChuonSophak]

Thank you sir for make video.

[@joramotorsportteam3277]

Can U send a link for the order for the tests? Do U have dealers in EU Baltic states?

[@KinCony]

these days will upload to Aliexpress, i will send you link later. sorry, now only sell from China.

[@yanyujiangnan8043]

中国能购买吗

[@KinCony]

没有

[@ersheikismail8293]

Good to integrate with industry

[@manzoorchaudhary6596]

Great job as always ... Please make a fan speed controller board with digital input just like knx fan actuator. Hope we have this soon Good luck

[@KinCony]

we already have it, KC868-D16:kzbin.info/www/bejne/eqCXipdsqdmYqZo it's a dimmer controller, but add driver (analog SSR) for motor, it can control fan speed.

[@moayedtawfiq2843]

👍🙏⚘️

[@ThomasMasterpiece]

Nice board, but too expensive for a china product.

[@KinCony]

do you know China product deeply?

[@cristopheraguilar6588]

Hello, I wrote to you on your WeChat to receive technical support for the h32pro, but I have not received an answer from you, I don't know if you receive the messages or have any other number to contact you. Thank you

[@KinCony]

any questions you can post to our technical support forum: www.kincony.com/forum