DAD06 DORJI | Alldatasheet
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Revision 1.00 Page of 8 Sept. 20181 DAD06 SX1262 testing board for Arduino UNO and ST Nucleo--L053R8 V1.00
Revision 1.00 Page of 8 Sept. 20182
DESCRIPTION
DAD06 is a testing board designed for lora sx1262 module DRF1262G. It can be used together with development Arduino UNO or ST Nucleo-L053R8 to test the distance of DRF1262G module or make quick re-development. Customers can download corresponding codes from DORJI website to make quick start. 1. Arduino UNO platform Users can set one kit as transmitter and another as receiver to make distance test. Because of the limited hardware resource of Arduino UNO, the RF-factor and RF-Bandwidth are fixed in the codes so users need to change related codes if wanting to test distance in different RF data rates. DAD06 board is powered by 5V Arduino UNO. The max. working voltage of sx1262 chip can not exceed 3.6V. There is a 5V-to-3V level converter on the board so users need to connect the jumper ( silkscreen name: Arduino/5V) and keep another jumper (silkscreen name: ST/3.3V) open in order to get the right logic level connection with the I/O pins of DRF1262G module. Figure 2: DAD06 board layout for Arduino UNO
Revision 1.00 Page of 8 Sept. 20183 Name Description Arduino UNO ST Nucleo-L053R8 LED1 Red--->TX, Blue--->receive used used LED2 Red---> Lora unused used Power jumper which can be used to measure the current of DRF1262G module. In normal working mode, it should be connected. connected connected K1,K2 Buttons for reserved function unused unused Arduino/5V Jumper for 5V-to-3.3V level converter, For Arduino UNO it should be connected and for ST Nucleo board, it should be open connected disconnected ST/3.3V Jumper for 3.3V direct pass. For Arduino UNO it should be disconnected and for ST Nucleo board, it should be connected disconnected connected CN1,CN2 2x19p female pin header which only can be used for ST Nucleo board. unused used CN3,CN4 CN5,CN6 Pin headers only for Arduno UNO. It will be better to keep them not soldered for ST Nucleo in case the board is too hard to insert into the ST Nucleo used unused SB1,SB2 SB3,SB4 The four jumpers are only used by ST Nucleo board to change the RF bandwidth unused used SB5 Reserved for ST Nucleo board unused reserved T/R Jumper for switching TX/RX for ST Nucleo board. Jumper disconnected-->TX, Jumper connected-->RX. unused used L/F Disconnected for ST Nucleo board unused disconnected SF1,SF2,SF3 The three jumpers are used by ST Nucleo board to change the RF factors unused used Table 1: The Functions of Jumpers and Pin headers on DAD06
Revision 1.00 Page of 8 Sept. 20184 Figure 3: DAD06 board with Arduino UNO
Revision 1.00 Page of 8 Sept. 20185 2. ST Nucleo-L053R8 Platform The testing board DAD06 provides more functions for testing with ST Nucleo-L053R8. The RF-factor and RF-bandwidth can be changed through related jumpers and the RX/TX also can be switched by the corresponding jumper. Please note that as soon as any jumper status is changed,users need to restart the ST Nucleo board by pressing the reset button on the ST board to make the change come into effect. The ST Nucleo board provides 3.3V TTL level so it’s no need to use the 5V-to-3V level converter and Users can connect the ST/3.3V jumper and keep the Arduino/5V jumper open. Please note that the RF-factor and RF-bandwidth jumpers must be set to the same in order to establish successful communication between two DAD06 boards. Figure 4: DAD06 Board for ST Nucleo-L053R8
Revision 1.00 Page of 8 Sept. 20186 SB1 SB2 SB3 SB4 RF_Bandwidth OFF OFF OFF OFF 250KHz ON OFF OFF OFF 125KHz OFF ON OFF OFF 60.5KHz OFF OFF ON OFF 41.67KHz OFF OFF OFF ON 31.25KHz ON ON OFF OFF 20.83KHz ON OFF ON OFF 16.63KHz ON OFF OFF ON 10.42KHz OFF ON ON OFF 7.81KHz Other combinations 500KHz Table 2: Jumpers vs RF_Bandwidth The DRF1276G module uses +/-10ppm crystal so bandwidth < 125KHz is not recommended for long-term application. DORJI will release TCXO version of sx1262 module DRF1262T which the narrower bandwidth can be used. Please check the website of DORJI for newest information for it. SF1 SF2 SF3 Spreading Factor OFF OFF OFF 12 ON OFF OFF 11 OFF ON OFF 10 OFF OFF ON 9 ON ON OFF 8 ON OFF ON 7 OFF ON ON 6 ON ON ON 5 Table 3: Jumpers vs RF_Spreading Factor Please note that the OFF in the tables above refers to the disconnected status of jumper and ON refers to the connected status of jumper.
Revision 1.00 Page of 8 Sept. 20187 Figure 5: DAD06 board with ST Nucleo-L053R8 Accessories for DAD06 Board The DAD06 board is shipped with necessary accessories for matching different development kits. Below are the list of these items.
Revision 1.00 Page of 8 Sept. 20188 Figure 6:Accessories for DAD06 board The suitable type of antennas for 868MHz band are DAA086SA045N (short right angle antenna) and DAA086SA100N (longer right angle antenna). We will provide DAA086SA100N by default unless it is out of stock and will be replaced with DAA086SA045N For 915MHz band, we will provide the DAA091SA045N (short right angle antenna) by default and will try to keep the longer right angle antenna in stock as soon as possible. DorjiApplied Technologies A division of Dorji Industrial Group Co., Ltd Add.: Xinchenhuayuan 2, Dalangnanlu, Longhua, Baoan district, Shenzhen, China 518109 Tel: 0086-755-28156122 Fax.: 0086-755-28156133 Email: sales@dorji.com Web: http://www.dorji.com Dorji Industrial Group Co., Ltd reserves the right to make corrections, modifications, improvements and other changes to its products and services at any time and to discontinue any product or service without notice. Customers are expected to visit websites for getting newest product information before placing orders. These products are not designed for use in life support appliances, devices or other products where malfunction of these products might result in personal injury. Customers using these products in such applications do so at their own risk and agree to fully indemnify Dorji Industrial Group for any damages resulting from improper use.
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