RF DEMO Board for Wireless Transceiver RF Module
Users can set the parameters of the RF module such as frequency / transmitter power / transmission data rate / working mode through the buttons, and measure the wireless communication distance.
Also, all the connection Pins of the module are extended to the demo board, user can use oscilloscope, multi-meter to monitor the operation of the RF module, which is very useful for software programming.
Working Mode
There are 5 working modes in the DEMO. They are: Master mode, Slave mode, Tx Test mode, Rx test mode, Standby mode, accordingly, they are displayed on the LCD as: Tx normal / Rx normal / Tx Test / Rx test / Standby. When one packet is transmitted, the Red LED will blink once, the number of Tx packets will increase; when one packet is received, the Blue LED will blink once, the number of Rx packets will increase.
1) Master Mode: Send 1 packet per second, and waiting for the acknowledge;
2) Slave Mode: Stay in Rx mode to wait for the data from the master, it will send back the acknowledged signal after receiving the data from the master.
3) Tx Test Mode: RF module continuously transmit signal;
4) Rx Test Mode: RF module is always in Rx mode;
5) Standby Mode: RF module is always in standby state.
Button Operation
1) [SET] Button
Press the [SET] button to enter setting mode if not in setting mode. In setting mode, press [SET] button to toggle between the set parameters: frequency /output power / data rate / working mode. The related LCD ICON will flash to indicate.
2) [UP] Button
In setting mode, press the [UP] button to increase the value of flash icon.
3) [Down] Button
In setting mode, press the [Down] button to decrease the value of flash icon.
Note: The DEMO board has FLASH memory inside, all the setting parameters will be saved automatically and keep unchanged even power-off.
Functions:
1. Set wireless module frequency,data rate,power,frequency deviation,radio frequency,etc parameters
2. Test wireless module communication distance,uA,working current etc parameters.
3. With our sample program,it can easily observe the SPI communication between MCU and the wireless module. And it can be used as a standard signal source in the absence of professional radio frequency instrument, to test customer's development program, thus shortening software engineers' development cycle.
Working mode:
1) Normal transmission mode: Regularly send packets (in the setting mode, temporarily no send packets);
2) Normal reception mode: power on, module in the receiption state, receiving data packets and forward the correct data packets;
3) often transmission mode: module in often-transmission state;
4) often reception mode: module in often receiption state (no forward data);
5) Sleep mode: module in standby state.
Button Functions:
1) SET button
In setting mode,press it,jump off setting mode after finish the final parameter,
2) UP / Down keys
In setting mode,press it,modify the corresponding parameters.
*Note: The data transmission module is with FLASH itself, so all of the parameters setted down can be saved after power off.
LCD display:
Company information: