HM-TRS V2.1 HM-TRS Series Transparent Wireless Data Link Module General HM-TRS series transparent wireless data link module is developed by Hope microelectronics Co. Ltd, dedicated for applications that needs wireless data transmission. It features high data rate, longer transmission distance. The communication protocol is self controlled and completely transparent to user interface. The module can be embedded to your current design so that wireless communication can be set up easily. It is an ideal choice for wireless applications. Features 1. FSK technology, half duplex mode, robust to interference 2. ISB band, no need to apply frequency usage license 3. Operation frequency can be configured and can be used in FDMA applications 4. Transmitted frequency deviation and receiver bandwidth can be selected. 5. Protocol translation is self controlled, easy to use. 6. Data rate can be select from a wide range. 7. Provide ENABLE pin to control duty-cycle to satisfy different application requirements 8. High sensitivity, long transmission range. 9. Very reliable, small size, easier mounting. 10. No tuning in producing Application Areas 1．Remote control, remote measurement system 2. Wireless metering 3. Access control 4. Identity discrimination 5. Data collection 6. IT home appliance 7. Smart house products 8. Baby monitoring Mechanical and Pin Definition Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com HM-TRS Pins description Pin P4 P3 P2 P1 VCC DRX DTX CONFIG Function Reserved Reserved Reserved Reserved Power supply Data reception Data transmission Configure enable ENABLE Work enable NC GND Pin Testing Ground Basic Parameters Condition/note Power supply Temperature 3 bands Frequency Pmax differs Power output Frequency dev Receiver bandwidth Serial data rate Serial data bit No check, odd/even Serial check check Serial stop bit V2.1 Note Not used, keep floating Not used, keep floating Not used, keep floating Not used, keep floating Supply voltage (2.2-3.8V) Module data output Module data input If this pin is hi at power on, module will enter configure mode, or the module enter normal mode If this pin is low in normal mode, the module will enter sleep mode immediately; if this pin is hi, the module will enter normal work mode. Keep floating Power ground Min. 2.2 -35 430.24 Pmax-21 15 67 Typ. 3.3 25 Pmax Max. 3.8 80 929.27 Pmax 240 400 Unit V ℃ MHz dBm kHz kHz 300 5 9600 8 19200 9 bps bit 1 1 2 bit Frequency(detailed) Model Condition/note HM-TRS433 HM-TRS868 HM-TRS915 Min. 430.24 860.48 900.72 Typ. 434 869 915 Max. 439.75 879.51 929.27 Unit MHz MHz MHz Max power out(Pmax) Model Condition/note HM-TRS433 HM-TRS868 HM-TRS915 Min. 4 2 2 Typ. 6 3 3 Max. Unit dBm dBm dBm Sensitivity Model HM-TRS433 HM-TRS868 HM-TRS915 Min. -97 -95 -95 Typ. -100 -97 -97 Max. unit dBm dBm dBm Condition/note Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com HM-TRS Power Consumption @ TXing Model Condition/note HM-TRS433 VCC=3.3V HM-TRS868 HM-TRS915 Power consumption @ RXing Model Condition/note HM-TRS433 VCC=3.3V HM-TRS868 HM-TRS915 Power consumption @ sleep Model Condition/note HM-TRS433 VCC=3.3V HM-TRS868 HM-TRS915 Reference communication range Model Condition/note HM-TRS433 In open area, antenna is of 1m HM-TRS868 above ground. HM-TRS915 V2.1 Min. Typ. 28 30 30 Max. unit mA mA mA Min. Typ. 20 22 22 Max. unit mA mA mA Min. Typ. 0.5 0.5 0.5 Max. 单位 uA uA uA Min. Typ. 200 200 200 Max. Unit m m m Module Use Connect the RS232 connector with PC or TLL level with MCU directly，apply power supply and the module is ready for your application. If CONFIG pin is low at power on, module will enter normal mode for data transmission, or enter configure mode to setup work parameters 1. Communication mode When CONFIG is low at power on, the module enters into normal communication mode. 2. Normal communication mode connection The use of default setting offers data communication (the serial default setting is 9600, 8, N, 1). It can be setup via HM-TR SETUP TOOL. When the serial data rate is less than 9600bps, the module supports continuous transmission, the max can be over 1,000,000 bytes at a time. When the rate is more than 9600bps, it should be less than 32 bytes at a time of transmission. Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com HM-TRS V2.1 The module work mode is half duplex mode. The data will be immediately transmitted as soon as it accumulates 32 bytes in the serial port. When the data is less than 32 bytes, it will transmit again after 30ms. If the data is required to be sent out immediately, make sure it is at least 32 bytes. Every time it finishes transmitting, the module will automatically shift into reception mode. The shift time is about 5ms. In normal mode, the pin ENALBE controls the module work or sleep, module will enter sleep mode as soon as the pin is low level. 3. Configure Mode When CONFIG is high at power on, the module enters into configure mode. In configure mode, the module work parameters can be setup via HM-TR setup tool on computer side and the communication format between module and computer is fixed: 9600, 8, N, 1. Configure mode connection HM-TR SETUP TOOL “Read” button: Read the parameters the module currently use; “Write” button: Write new configuration to module; Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com HM-TRS V2.1 “Default” button: Recover module parameters as default value Ordering Information 型号 HM-TRSxxx Interface level TTL Module Naming Rule HM-TR S 433 Band： 433band—434MHz； 868band—869MHz； 915band—915MHz。 Package：S—SMT Product code TX/RX：TR—Transeiver Mechanical: Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com HM-TRS V2.1 This document may contain preliminary information and is subject to change by Hope Microelectronics without notice. Hope Microelectronics assumes no responsibility or liability for any use of the information contained herein. Nothing in this document shall operate as an express or implied license or indemnity under the HOPE MICROELECTRONICS CO.,LTD intellectual property rights of Hope Microelectronics or third parties. Add:4/F, Block B3, East Industrial Area, The products described in this document are not intended for use in Huaqiaocheng, implantation or other direct life support applications where Shenzhen, Guangdong, China malfunction may result in the direct physical harm or injury to Tel: 86-755-82973805 persons. NO WARRANTIES OF ANY KIND, INCLUDING, BUT NOT Fax: 86-755-82973550 LIMITED TO, THE IMPLIED WARRANTIES OF MECHANTABILITY Email: [email protected] OR FITNESS FOR A ARTICULAR PURPOSE, ARE OFFERED IN [email protected] THIS DOCUMENT. Website: http://www.hoperf.com http://hoperf.en.alibaba.com ©2006, HOPE MICROELECTRONICS CO.,LTD. All rights reserved. Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com