SK200PRO G-NICE | Alldatasheet
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Technical content
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. sales@nicerf.com TEL:0755 -1- SK200PRO
- LoRa, Industrial /Anti interference/
- wireless single channel switch control module Product Specification
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com Catalogue Note: Document revision history Revision Date Comment V1.0 2019-11 First release V1.1 2020-12 Update description V1.2 2025-02 Update frequency band and other information
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com 1. Overview SK200PRO is an industrial wireless single switch control module. It consists of SK200PRO-TX ( transmitter module ) and SK200PRO-RX ( receiver module ). The transmitter can choose a module with a power of 100mW, 1W or 5W as required. The wireless design uses LoRa technology, which has highly efficient receiving sensitivity and strong anti-interference performance. Its communication distance and receiving sensitivity are better than FSK and GFSK modulation. In the one-to-many working mode, in cooperation with the MESH ad hoc network that comes with the receiving end, it can form a network transmission without blind spots and distance restrictions. The module provides single signal input and single control output interface. It has the characteristics of simple interface and reliable operation. Users can combine our PC interface to configure and modify the internal parameters of the module. The parameters of the receiver can be wirelessly configured by the transmitter, which is convenient for online changes. Multi-pair simultaneous communication will not interfere with each other, and it is flexible and convenient to use. SK200PRO strictly uses lead-free process for production and testing, and meets RoHS and Reach standards. 2. Features MESH network function Working frequency band: 433/470/868/915 MHz optional Sensitivity up to -132 dBm Built-in software watchdog algorithm Built-in hardware anti-crash protection circuit Transceiving frequency can be arbitrarily configured Multiple working modes Anti-overcurrent, overvoltage, rever connection protection circuit Built-in hardware reset protection circuit Built-in anti-static protection circuit LoRa modulation mode Transmitter power is selectable: (100mW～5W) Support wireless modification parameters Operating temperature range: -40 ~+85 ° C 3. Application Digital remote control Security system Wireless pump control Wireless remote access control
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com 4. Performance parameter The electrical parameters of SK200PRO-TX module are as follows: Model SK200PRO-TX-100mW SK200PRO-TX-1W SK200PRO-TX-5W Image Transmit power 20dBm 29.5dBm 37dBm Working voltage (range) 5V(3.3V～6.5V) 5V(3.3V～6.5V) 12V(9V～30V) Sleep current 200uA 250uA 7mA Quiescent Current 15mA 16mA 18mA Emission current 130mA 600mA 1.8A Range of working temperature -40℃～85℃ The electrical parameters of SK200PRO-RX module are as follows: Parameter Smallest Typical Largest Unit Condition Operating conditions Working voltage range 5 12 30 V Relay load < 10 A @220V Radio frequency parameter Receive current < 10 mA @12V Receiving sensitivity -132 dBm 5. Product Function Description 1) Input and output CS pin of the transmitter is the input. With a built-in pull-up, disconnected CS pin or given a high level (3.3V) means high level input, Short the CS pin to the ground GND means low level input, and the relay of the receiver module will correspondingly be open or close.
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com CS of Transmitter Receiver relay 0 ( Low level ) *Close 1 ( High level ) *OPEN Note1: You can contact us to get the relay to reverse state Note2: After power on reset of the receiver, the default state of the relay is close. ( User can change the default state with our PC software ) 2) Operating mode There are several working mode for user to choose through our PC software. Real Time Mode: In this mode, both the transmitter and receiver are ready all the time. The receiver will synchronize the relay out immediately when the input state of the transmitter is changed. Every 60s, the transmitter will send synchronize signal to the receiver, the receiver is lost link and the relay of receiver will change to default state after no synchronize signal received for consecutive 3 times. User can set this 60s to other time period with our PC software. Low Power Mode: In this mode, the transmitter can work in low power mode. Most of the time, the transmitter is sleeping to save power consumption. It will be awaken and send signal out once the input state ( CS Pin) is changed. In this mode, no lost link indication in the receiver.
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com Note:*1 The relay state when lost link can be changed by PC software *2 Time interval can be modified by PC software *3 The lost link function is available in real time mode only. In order to prevent the receiver from working uncontrollably and causing the equipment to work abnormally, the receiver will open or close the relay automatically if it does not receive the synchronization signal within a specified time. *4 Transmitter and receiver must work in the same mode. *5 Factory default working mode is Real Time mode. 3) MESH networking When one transmitter controls multiple receivers, some receivers may not receive control signals due to the range. To solve this problem, SK200PRO comes with MESH networking function. The receivers can be organized as MESH network to extend the longer range. 4) AES128 data encryption In the process of wireless communication, in addition to the built-in data encryption function, SK200PRO can also be superimposed to enable AES128 encryption. Users can read or change the AES128 key of the module through our PC software. After the AES128 encryption mode is enabled, the wireless transmission delay will be slightly longer, but the protection of air data will be better. Customers can enable the AES128 encryption function of the module in applications which require high data encryption. Transmitter working mode Receiver Working mode Transmitter without trigger Transmitter input level changes *1 Lost link ( receiver ) power save mode ( transmitter ) Method of switching working modes *5Real time mode *4Must be the same as the transmitter *2Send sync signal at set time interval Send sync signal immediately Yes No Via PC softwareLow power mode sleep No this function Yes
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com 5) Response delay Because wireless transmission takes a certain amount of time, the receiving relay will delay the response. Specific response delays in the following instant modes: Speed (bps) 91 164 296 656 830 1557 2932 4750 9501 17353 General delay 2.98s 1.61s 811ms 453ms 363ms 211ms 104ms 64ms 40ms 24ms Enable AES encryption delay 3.25s 1.80s 920ms 518ms 432ms 276ms 139ms 94ms 70ms 45ms As shown in the table above, the higher the wireless rate, the shorter the response delay. The range will be shorter with higher data rate. Users can choose the right data rate according to the applications 6. Parameter configuration Configuration method Configurable parameters (all can be saved after power off) The transmitter Configuration via computer *1NET ID, NODE ID, working mode, sending interval, Frequency, transmit power, wireless rate, encryption enable,Key, power-on reset and alarm relay statusReceiver Wireless configuration via transmitter *1 The transmitting and receiving parameters must be the same ① Set the transmitter Transmitter connection diagram: SK200PRO-TX-100mW SK200PRO-TX-1W SK200PRO-TX-5W Transmitter configuration steps:
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com A) Install the USB driver B) Put on the shorting cap on the USB bridge, connect the USB bridge with transmitter through 6PIN cable . C) Connect the USB bridge with the computer, (SK200PRO_TX_5W needs external power supply, because of the high output power , the USB port can’t drive this high output power) D) The red and blue led on the transmitter will be light on to indicate the transmitter is in the setting mode E) Open the transmitter configuration software, select the right com port, and click the "OPEN" button to open the serial port F) Click the [READ] button to read all the current parameters G) Modify the parameters H) Click the [SET] button to confirm the modification I) If necessary , Click the [DEFAULT] button to restore the parameters to the factory default values.
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com ②Set the Receiver User can connect the transmitter with the computer and use our special PC software to modify the receiver’s parameters wirelessly. Setup steps: a) Connect the transmitter with the computer through the USB bridge (note that the short cap on the USB bridge board must be removed), and open the receiver configuration software. b) Select the right com port and click open button on the pc software. c) Enter the Node ID of the receiver to be configured d) Click the [READ] button to read the current parameter information of the receiver e) Modify the parameters to be modified, click [SET] button to confirm the modification f) If necessary, Click the [DEFAULT] button to restore the parameters on the receiver to the factory default values.
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com Important Note: Before configuration, you must remember the current parameters of the receiver Frequency, rate, NET ID, NODE ID If you accidentally forget the parameters Contact us ③ Parameter description: Parameter Setting range Description Defaults NET ID 0x00000000~ 0xFFFFFFFF Module's network ID. Only modules with the same parameter settings can communicate with each other. 0x00000000 NODE ID 0x0001~0xFFFF Module's own address ID 0x0001 MESH Enable/ Disable Whether to enable the MESH ad hoc network function. When enabled, the receivers can pass signals to each other for routing. Disable MODE Real Time mode / Low power mode Selection of working mode. Optional as Low power mode Or Real Time mode Real Time mode TX INTERVAL 1s~65535s How often is the synchronization signal sent? 60s Default state after POR Open/Close The state of the relay after the receiver is powered on and reset Open Lost link state Open/Close The state of the relay when the receiver is lost link Open FREUENCY *1Note The operating frequency of the module. *1Note RF RATE 91bps~17353bps The air speed of wireless transmission. The lower the speed, the longer the communication distance, and the longer the response time. 656 bps RF POWER 0~7 Transmit power, level 7 is the maximum power. The greater the power, the longer the communication distance. ENABLE ENCRYPTION Enable/Disable AES encryption enabled Disable KEY 16 Bytes AES encryption key. 0x0001020304050607 08090a0b0c0d0e0f Note:*1The frequency setting must be within the range of the ordered frequency band to ensure the module achieves the best communication performance.
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com Frequency band 433M 470M 868M 915M Frequency Range 413M~453M 470M~510M 848M~888M 895M~935M Default frequency 433.92M 490.92M 868.92M 915.92M 7. Interface definition description a) The interface description of the receiver module SK200PRO-RX is shown in the following figure: b) The interface description of the transmitter module SK200PRO-TX is shown in the following figure: SK200PRO-TX-100mW:
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com SK200PRO-TX-1W: SK200PRO-TX-5W: Pin definition Description VCC Connect to positive pole GND Ground TXD For configuration mode parameter setting RXD For configuration mode parameter setting SET Configuration parameter enable (low level enable parameter configuration, default high level output) CS Switch signal input pin (with internal pull-up)
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com 8. Peripheral accessories The antenna is an important part of the communication system, and its performance directly affects the indicators of the communication system. The antenna impedance required by the module is 50 ohms. Common antennas include straight / elbow / folding rods, small suction cups, etc. Users can choose the antenna according to their own application environment. In order to make the module work optimally, it is recommended to use the antenna provided by our company. Model Recommended antenna SK200PRO-RX Rod antenna, small sucker antenna SK200PRO-TX-100mW Rod antenna, small sucker antenna SK200PRO-TX-1W Small sucker antenna SK200PRO-TX-5W Small sucker antenna, Yagi antenna ★ During the use of the antenna, the following principles should be followed to ensure the best communication distance of the module: The antenna should not be close to the ground surface, and the surrounding area should be away from obstacles; If you choose a suction cup antenna, the leads should be as straight as possible, and the suction cup base must be attached to a metal object；
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com 9. Mechanical dimensions (unit: mm) a) Transmitter module SK200PRO-TX-100mW SK200PRO-TX-1W
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com SK200PRO-TX-5W b) Receiver module SK200PRO-RX
www.nicerf.com SK200PRO NiceRF Wireless Technology Co., Ltd. Rev 1.2 sales@nicerf.com 10. Common problem a) Why can't the modules communicate normally? 1) The power connection is incorrect, and the module is not working properly； 2) Whether the module is in normal communication mode (SET is high)； 3) Check whether the frequency band and channel settings of each module are consistent； 4) Is the module damaged (will the light flash after power on?)。 b) Why is the transmission distance not far？ 1) Power supply ripple is too large； 2) The antenna types do not match or are installed incorrectly； 3) Peripheral co-channel interference； 4) The surrounding environment is harsh and there are strong interference sources.