20 Channel ESP32 AC LoRa Energy Meter – N20

We have designed 20 Channel ESP32 energy monitor board – N20 (ESP32 30 Channel CT Clamp Energy Monitor) for home automation project. It based on ESP32-S3-WROOM-1U (N16R8) wifi chip. The hardware have 20CH CT Clamp sensor INPUT ports + 2CH ZMPT101B voltage sensor + SD card + LoRa module + OLED display + free GPIOs. Ethernet+RS485+i2c extender 20CH high-accuracy energy meter ic-BL0910 with CT clamp. You can write any code by Arduino IDE / Micro Python / ESP-IDF development tool to ESP32-S3 module. We will supply Arduino demo code for different samples. Everyone can modify and change the code for your own smart home automation system project. it support use by ESPHome for home assistant for smart home automation DIY. N20 use KCS v3 firmware, it support home assistant auto discovery function by MQTT, so without write any config code (zero code) for home assistant. KCS v3 support KinCony cloud service (official shop customer free 2 years), remote monitor and control device by webpage in anywhere. KCS v3 support KinCony board integrate to Loxone Miniserver. Support Apple HomeKit for Siri.

Model No. KinCony N20
Description: KinCony 20 Channel AC Energy Meter – N20
Power supply: 12-24V DC
Processor: ESP32-S3-WROOM-1U (N16R8)
Size: 140mm*83mm*60mm
interfaces: Ethernet(RJ45)-LAN 100Mbps IPv4/IPv6,WiFi,RS485,Bluetooth,LoRa,USB-C,i2c extender
Installation method: DIN RAIL
CT Clamp: 20 channel 2000:1 CT clamp “voltage” sensor
2 channel AC voltage: AC 0-380v
Button-DL: ESP32S3 download
Button-EN: ESP32S3 reset
Button-RST: RESET for ARM CPU
LED:
D5: power LED
D7: error LED
D6: running LED
Free GPIOs: GPIO15,GPIO16

what’s mainly different between N20 and M30:

1. N20 use by KCS v3 using ESP32-S3 large memory CPU, M30 use by KCS v2 using ESP32 CPU.
2. N20 have flash chip save the total energy data when N20 power off.
3. N20 use SD card to save energy data as excel file for every one hour.
4. N20 have i2c extender, easy extend i2c temperature and humidity sensors.
5. N20 have 2 free GPIOs use for sensor or KinCony G1 4G module.
6. N20 support use by MAX 250A CT clamp sensor. M30 support MAX 120A CT clamp sensor.
7. N20 support LoRa for KinCony ALR or KC868-A6v3 LoRa board.
8. N20 added new coefficient correction settings page
9. N20 use new Modbus protocol for user to read and config all channel data.
10. N20 support IFTTT, automatic send command by voltage or current or some other IF condition.

software solution:

1. download KinCony KCS v3 firmware, so that work with MQTT protocol. “KCS” support IFTTT function work locally without internet. It also support use by KinCony cloud server. KCS v3 support home assistant auto discovery function by MQTT, so without any config file for home assistant.

2. download firmware by ESPHome, integrate to home assistant or use by web service.

3. use PC software to read all data from N20.

4. write your own Arduino or ESP-IDF code for your own requirements.

Order bundles:
Bundle A: N20
Bundle B: N20 + USB-C cable + power supply

Related technical information
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ESP32 I/O pin define: https://www.kincony.com/forum/showthread.php?tid=8611
config yaml file for ESPHome: https://www.kincony.com/forum/showthread.php?tid=8646
arduino demo source code: https://www.kincony.com/forum/forumdisplay.php?fid=96
how to use “KCS”v3 firmware with N series energy meter board: https://www.kincony.com/how-to-use-kcsv3-firmware-energy-meter.html
KCS v3 firmware online guide: https://www.kincony.com/how-to-use-kcsv3-firmware-esp32-board.html

hardware details: