KinCony F4 4-Channel Programmable Smart Relay Controller | Relay Modules Removable
Start your journey into reliable control with the KinCony F4: The compact yet capable smart relay controller. Based on the powerful ESP32-S3, this streamlined controller features 4 socket-mounted OMRON® relays with dedicated manual override buttons, designed for quick and safe relay replacement after power-down. With its versatile 12/24VDC power input, comprehensive I/O, and robust connectivity options, the F4 is the perfect foundation for smaller-scale industrial automation, smart home projects, or as a dependable building block in distributed control systems.
Why You'll Love This Controller
✔ Unmatched Serviceability in a Compact Package
Experience the flagship F series advantage of pluggable relays in a more compact size. Simplify maintenance and future upgrades without the need for soldering or complex repairs.
✔ Guaranteed Control with Essential Manual Override
The dedicated manual toggle switch ensure you always have direct, hardware-level command over your critical loads, providing peace of mind and operational safety.
✔ Your Flexible Gateway to Major Smart Ecosystems
Easily integrate into Home Assistant (via MQTT Auto-Discovery), Apple HomeKit, or manage remotely via Tuya Smart. The built-in 433MHz RF receiver instantly adds support for a wide range of affordable wireless sensors.
✔ Built for Reliable “Set and Forget” Operation
From industrial-grade OMRON relays and opto-isolated inputs to a wide-input-voltage power design, the F4 is engineered for dependable performance in demanding environments.
✔ Open Platform for Creative Customization
Leverage the open-source programmability of the ESP32-S3 with Arduino IDE, MicroPython, or ESP-IDF to develop tailored logic and automation that fits your specific project needs.
Among other outstanding features are the following:
- Pluggable OMRON® Relays: High-quality 16A relays are socketed for tool-free replacement, ensuring easy maintenance and long-term uptime.
- Manual Override Buttons: 4 physical toggle Switch provide direct, fail-safe control of each relay channel, independent of the controller's logic state.
- Professional & Compact Form Factor: DIN-rail mountable design allows for neat installation in any electrical enclosure, even in tight spaces.
- Versatile Connectivity Suite: Equipped with Wi-Fi, Ethernet, RS-485, and a 433MHz RF receiver for flexible integration into various systems.
- Standalone Operational Intelligence: High-precision RTC with battery backup enables scheduled automation without requiring a constant internet connection.
- Clear System Status: On-board LCD displays real-time network information and system status at a glance.
Technical Specifications:
| Category | Specification |
|---|---|
| Core Processor | ESP32-S3-WROOM-1U (N16R8, dual‑core 32‑bit Xtensa LX7) |
| High-Power Outputs | 4× OMRON® SPDT relays (removable modules) ▪ Contact: COM, NO, NC ▪ Max load: 250 VAC / 30 VDC, 16 A per channel |
| Analog Inputs | 4× 16‑bit ADC ▪ 2× 0–5 VDC ▪ 2× 4–20 mA (loop‑powered) |
| Digital Inputs | 4× dry contact, opto‑isolated ▪ Cable length: up to 500 m (dependent on installation) |
| Digital I/O (GPIO) | ▪ 4× 1‑Wire interface (with pull‑up) ▪ 2× free GPIO (direct to ESP32, no pull‑up) |
| Wired Connectivity | ▪ Wi‑Fi 2.4 GHz (802.11 b/g/n) ▪ Bluetooth 5.0 (BLE) ▪ 433 MHz RF receiver |
| IoT Platform | Tuya‑compatible (via Wi‑Fi/Bluetooth) |
| Wired Connectivity | ▪ Ethernet: 100M RJ45 (IPv4/IPv6) ▪ RS485 ▪ USB‑C (power/programming) ▪ I²C (expansion) |
| Onboard Peripherals | ▪ RTC: DS3231 (battery socket) ▪ Display: SSD1306 128×64 OLED (I²C) ▪ Storage: microSD card socket |
| Power Supply | 12/24 VDC (12 VDC default) |
| Dimensions | 138 × 127 × 65 mm |
| Mounting | 35 mm DIN rail (EN 60715) |
I. Firmware Options and Features
| Solution | Ideal For | Key Advantages |
|---|---|---|
| 1. KCS v3 Firmware (Recommended) | Beginners / Zero-Code Users | ✔ Auto-detects Home Assistant via MQTT (no config files) ✔ Works with Tuya App + Alexa/Google Voice Control ✔ Local IFTTT automation (no internet needed) ✔ 2-year free KinCony Cloud (official store only) ✔ Apple HomeKit support (one-tap setup) |
| 2. ESPHome Firmware | Home Assistant Enthusiasts | ✔ Full open-source customization ✔ Web UI + HA deep integration ✔ Full YAML examples |
| 3. Tasmota Firmware | Open-Source Community | ✔ Massive plugin ecosystem ✔ MQTT/Web control + rule engine |
| 4. Arduino/ESP-IDF Custom Code | Developers | ✔ Full Arduino demos ✔ Supports MicroPython/ESP-IDF |
| 5. Hybrid Setup (Best Practice) | Advanced Users | Tuya App (remote via internet) + Home Assistant (local via LAN) – Security + convenience |
II. Technical Resources by Product
Direct links to pin definitions, ESPHome configurations, Arduino demo source codes, and KCS firmware. All open-source and maintained on GitHub.
| Model | KCS Firmware | Pin Definitions | ESPHome (YAML) | Arduino Demos |
|---|---|---|---|---|
|
F4
4‑ch relay · 4 inputs
ADS1115 |
📦 kcs_{KCS_VERSION}.bin | 📄 F4_pin_definition.md |
🔹 with Tuya Tuya module
🔸 without Tuya Ethernet/WiFi only
|
📁 F4/ (11 examples) |
|
F8
8‑ch relay · 8 inputs
PCF8575 |
📦 kcs_{KCS_VERSION}.bin | 📄 F8_pin_definition.md |
🔹 with Tuya Tuya module
🔸 without Tuya Ethernet/WiFi only
|
📁 F8/ (11 examples) |
|
F16
16‑ch relay · 16 inputs
PCF8575 |
📦 kcs_{KCS_VERSION}.bin | 📄 F16_pin_definition.md |
🔹 with Tuya Tuya module
🔸 without Tuya Ethernet/WiFi only
|
📁 F16/ (11 examples) |
|
F24
24‑ch relay · 24 inputs
3×PCF8575 |
📦 kcs_{KCS_VERSION}.bin | 📄 F24_pin_definition.md |
🔹 with Tuya Tuya module
🔸 without Tuya Ethernet/WiFi only
|
📁 F24/ (12 examples) |
|
F32
32‑ch relay · 32 inputs
3×PCF8575 |
📦 kcs_{KCS_VERSION}.bin | 📄 F32_pin_definition.md |
🔹 with Tuya Tuya module
🔸 without Tuya Ethernet/WiFi only
|
📁 F32/ (11 examples) |
| Model | KCS Firmware | Pin Definitions | ESPHome (YAML) | Arduino Demos |
|---|---|---|---|---|
|
T16M
16‑ch relay + 16 inputs
single I2C bus |
📦 kcs_{KCS_VERSION}.bin | 📄 T16M_pin_definition.md | 📁 T16M/ (6 examples) | |
|
T32M
32‑ch relay + 32 inputs
dual I2C bus |
📦 kcs_{KCS_VERSION}.bin | 📄 T32M_pin_definition.md | 📁 T32M/ (7 examples) | |
|
T64M
64‑ch relay + 64 inputs
dual I2C buses |
📦 kcs_{KCS_VERSION}.bin | 📄 T64M_pin_definition.md | 📁 T64M/ (8 examples) | |
|
T128M
128‑ch relay + 128 inputs
dual I2C buses |
📦 kcs_{KCS_VERSION}.bin | 📄 T128M_pin_definition.md | 📁 T128M/ (8 examples) | |
|
TA
Thermostat Adapter
|
📦 kcs_{KCS_VERSION}.bin | 📄 TA_pin_definition.md | 📁 TA/ (11 examples) |
🔸 v2 high‑precision ESPHome configs (0.001 kWh) require ARM CPU firmware ≥ V20_260305SP.
| Model | KCS Firmware | Pin Definitions | ESPHome (YAML) | Arduino Demos |
|---|---|---|---|---|
|
N10
10‑ch energy meter
|
📦 kcs_{KCS_VERSION}.bin | 📄 N10_pin_definition.md |
🔹 N10_esphome.yaml v1 (1 kWh)
🔸 N10_esphome_v2.yaml v2 (0.001 kWh)
v2 require ARM CPU firmware ≥ V20_260305SP. |
📁 N10/ (5 examples) |
|
N20
20‑ch energy meter
|
📦 kcs_{KCS_VERSION}.bin | 📄 N20_pin_definition.md |
🔹 N20_esphome.yaml v1 (1 kWh)
🔸 N20_esphome_v2.yaml v2 (0.001 kWh)
v2 require ARM CPU firmware ≥ V20_260305SP. |
📁 N20/ (5 examples) |
|
N30
30‑ch energy meter
|
📦 kcs_{KCS_VERSION}.bin | 📄 N30_pin_definition.md |
🔹 N30_esphome.yaml v1 (1 kWh)
🔸 N30_esphome_v2.yaml v2 (0.001 kWh)
v2 require ARM CPU firmware ≥ V20_260305SP. |
📁 N30/ (5 examples) |
|
N60
60‑ch energy meter
|
📦 kcs_{KCS_VERSION}.bin | 📄 N60_pin_definition.md |
🔹 N60_esphome.yaml v1 (1 kWh)
🔸 N60_esphome_v2.yaml v2 (0.001 kWh)
v2 require ARM CPU firmware ≥ V20_260305SP. |
📁 N60/ (5 examples) |
| Model | KCS Firmware | Pin Definitions | ESPHome (YAML) | Arduino Demos |
|---|---|---|---|---|
|
DM4
4‑ch digital input module
|
📦 kcs_{KCS_VERSION}.bin | 📄 DM4_pin_definition.md |
🔸 without Tuya Ethernet/WiFi only
|
📁 DM4/ (11 examples) |
|
DM8
8‑ch digital input module
|
📦 kcs_{KCS_VERSION}.bin | 📄 DM8_pin_definition.md |
🔸 without Tuya Ethernet/WiFi only
|
📁 DM8/ (11 examples) |
|
DM16
16‑ch digital input module
|
📦 kcs_{KCS_VERSION}.bin | 📄 DM16_pin_definition.md |
🔹 with Tuya Tuya module
🔸 without Tuya Ethernet/WiFi only
|
📁 DM16/ (11 examples) |
|
DM32
32‑ch digital input module
|
📦 kcs_{KCS_VERSION}.bin | 📄 DM32_pin_definition.md |
🔸 without Tuya Ethernet/WiFi only
|
📁 DM32/ (11 examples) |
| Model | KCS Firmware | Pin Definitions | ESPHome (YAML) | Arduino Demos |
|---|---|---|---|---|
|
G1
Gateway controller
|
📦 kcs_{KCS_VERSION}.bin | 📄 G1_pin_definition.md | Not supported | 📁 G1/ (11 examples) |
|
AIO Hybrid
All‑in‑one hybrid controller
RF433 · Zigbee · IR · DAC |
📦 kcs_{KCS_VERSION}.bin | 📄 AIO_Hybrid_pin_definition.md |
🔹 with Tuya Tuya module
🔸 without Tuya Ethernet/WiFi only
|
📁 AIO Hybrid/ (13 examples) |