SK108H : 1W 4 Channel Wireless Relay Module With Hopping Functions
Interface: IO
Channel: 4 channel
Communication: Two-way
Open distance(km): 2.5~3
Size:115*90
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SK108 : 1W 4 Channel RC Transmitter And Receiver Module With ESD Protection
- SK108 is a industrial four channel wireless switch controller, it provides maximum four channel signal input and maximum four channel control output. It features simple interface and reliable performance. The parameters can be modified by PC software / UART command / remote controller (SK108-S). DIP switch on the module can used to change operating frequency (maximum 16 group), operation mode etc. Using this module, user can replace wired device with the wireless connection, which significantly reduce the cost and save much time.
- SK108 strictly uses lead-free process for production and testing, and meets RoHS and Reach standards.
Note: Below parameters base on 12V power supply/ 25℃ testing environment.
| Parameters | Min. | Typ. | Max. | Unit | Condition |
| Working Condition | |||||
| Voltage range | 9 | 12 | 30 | V | |
| Operating Temperature | -40 | 25 | +85 | ℃ | |
| Current Consumption | |||||
| Rx current | <20 | mA | |||
| Tx current | <200 | mA | |||
| Sleep current | <5 | mA | @12V Timing mode Non transmitting | ||
| RF Parameters | |||||
| Output power | 30 | dBm | |||
| Sensitivity | -121 | dBm | @1200bps | ||
| Interface | I/O |
| Channel | 4 channel |
| Communication | Two-way |
| Open distance (km) | 2.5~3 |
Features of 4 channel RC transmitter and receiver module SK108
- Up to 3Km line-of-sight in open area
- Frequency Band: 433/470/868/915MHz(Optional)
- 16 predefined channels
- Parameters configurable by PC software/ Remote controller/ UART Command
- Real-time/Timing working mode for optional
- GFSK modulation
- Bi-directional wireless switch control
- Sensitivity up to 121 dBm
- Maximum output power: 1 W
- Working voltage: 9 ~ 30 V
- Working temperature range: - 40 ~ + 85 ° C
- Weight: 143g
Application of 4 channel RC transmitter and receiver module SK108
- Remote control switch control
- Security system
- Home automation remote sensing
- Wireless remote telemetry
- Building automation and security
- Access control system
| Pin NO. | Pin | Description |
| 1 | GND | Power Ground |
| 2 | VCC | Connect to positive power |
| 3 | IN1 | Ch1 input, internal pull up |
| 4 | GND | |
| 5 | IN2 | Ch2 input, internal pull up |
| 6 | GND | |
| 7 | IN3 | Ch3 input, internal pull up |
| 8 | GND | |
| 9 | IN4 | Ch4 input, internal pull up |
| 10 | GND | |
| 11 | NC | Reserved, Non-Connected |
| 12 | NC | Reserved , Non-Connected |
| 13 | OUT1 | Ch1 relay control output, closed : low level in Tx Open : high level in Tx |
| 14 | ||
| 15 | OUT2 | Ch2 relay control output, closed : low level in Tx Open : high level in Tx |
| 16 | ||
| 17 | OUT3 | Ch3 relay control output, closed : low level in Tx Open : high level in Tx |
| 18 | ||
| 19 | OUT4 | Ch4 relay control output, closed : low level in Tx Open : high level in Tx |
| 20 |
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