Related Manuals for RF-Star 83UP
Summary of Contents for RF-Star 83UP
- Page 1 RF-83UP SX1276 868 MHz & 915 MHz LoRa Module Version 1.3 Shenzhen RF-star Technology Co., Ltd. Jun. 19, 2019...
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Page 2: Rf-Star Lora Module List
1. The communication distance is the longest distance obtained by testing the module's maximum transmission power in an open and interference-free environment in sunny weather. 2. Click the picture to jump to buy modules. Shenzhen RF-star Technology Co., Ltd. Page 1 of 35... -
Page 3: Device Overview
1.1 Description RF-83UP module is a LoRa spread spectrum module, with operating frequency of 868 MHz ~ 893 MHz & 900 MHz ~ 931 MHz, based on the Semtech SX1276. It is a wireless transceiver module with 3.3 V TTL level output. RF-star LoRa module features with ultra-long range spread spectrum communication, concentrated power density, high interference immunity ability, confidentiality, and significantly lower current consumption. -
Page 4: Functional Block Diagram
LDO3 32.0 MHz LDO4 Figure 1. Functional Block Diagram of RF-83UP 1.5 Part Number Conventions The part numbers are of the form of RF-83UP where the fields are defined as follows: RF 8 Package Mode Company Name DIP Package RF-STAR... -
Page 5: Table Of Contents
RF-83UP www.szrfstar.com V1.3 - Jun., 2019 Table of Contents RF-star LoRa Module List ............................... 1 1 Device Overview ................................2 1.1 Description ................................2 1.2 Key Features ............................... 2 1.3 Applications ................................2 1.4 Functional Block Diagram ..........................3 1.5 Part Number Conventions ..........................3 Table of Contents ................................ -
Page 6: Table Of Figures
Figure 2. Part Number Conventions of RF-83UP ..................3 Figure 3. Pin Diagram of RF-83UP ........................8 Figure 4. Photos of RF-83UP ..........................12 Figure 5. Recommended PCB Footprint of RF-83UP (mm) ..............12 Shenzhen RF-star Technology Co., Ltd. Page 5 of 35... -
Page 7: Table Of Tables
Table 1. Parameters of RF-83UP ........................7 Table 2. Pin Functions of RF-83UP ........................8 Table 3. Recommended Operating Conditions of RF-83UP ..............10 Table 4. Handling Ratings of RF-83UP ......................10 Table 5. Current Consumption of RF-83UP ....................10 Table 6. -
Page 8: Module Configuration And Functions
RF-83UP www.szrfstar.com V1.3 - Jun., 2019 2 Module Configuration and Functions 2.1 Module Parameters Table 1. Parameters of RF-83UP Chipset Semtech SX1276 Supply Power Voltage 3.3 V ~ 5.2 V, recommended to 5.0 V UART Communication Level 2.5 V ~ 3.6 V, typical: 3.3 V... -
Page 9: Module Pin Diagram
RF-83UP www.szrfstar.com V1.3 - Jun., 2019 2.2 Module Pin Diagram Figure 3. Pin Diagram of RF-83UP 2.3 Pin Functions Table 2. Pin Functions of RF-83UP Name Pin Type Description RES_MCU Reset pin, NC. Ground, NC. SWIM_MCU SWIM pin of internal MCU VCC (Power supply pin when flash the firmware) Cooperate with S1 to determine the working mode. - Page 10 Pull the serial port high before sending data and pull low after sending. Timed wake-up pin, pull high when wake-up. Pull high when module sending data, pull low after sending. Power supply: 3.3 V ~ 5.2 V. Ground Ground Ground Ground Ground Shenzhen RF-star Technology Co., Ltd. Page 9 of 35...
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Page 11: Specifications
Functional operation does not guarantee performance beyond the limits of the conditional parameter values in the table below. Long-term work beyond this limit will affect the reliability of the module more or less. Table 3. Recommended Operating Conditions of RF-83UP Items Condition Typ. - Page 12 RFOP = +20 dBm, on PA_BOOST RFOP = +17 dBm, on Supply current in Transmit mode with PA_BOOST impedance matching RFOP = +13 dBm, on RFO_LF/HF pin RFOP = +7 dBm, on RFO_LF/HF pin Shenzhen RF-star Technology Co., Ltd. Page 11 of 35...
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Page 13: Application And Layout
RF-83UP www.szrfstar.com V1.3 - Jun., 2019 4 Application and Layout 4.1 Module Photos Figure 4. Photos of RF-83UP 4.2 Recommended PCB Footprint Figure 5. Recommended PCB Footprint of RF-83UP (mm) Shenzhen RF-star Technology Co., Ltd. Page 12 of 35... -
Page 14: Schematic Diagram
Interface J3-1 J3-2 J3-3 Figure 6. Schematic Diagram of RF-83UP 4.4 Reference Design of the Connection between MCU and Module Figure 7. Reference Design of the Connection between MCU and Module Note: TTL level for module and MCU. Shenzhen RF-star Technology Co., Ltd. -
Page 15: Module Working Mode
RF-83UP www.szrfstar.com V1.3 - Jun., 2019 5 Module Working Mode 5.1 Working Mode RF-83UP supports 4 kinds of working modes. Working Mode Mode Description Remark The receiver must work in Normal mode Low level Low level Transparent transmission mode. normal mode or wake-up mode. -
Page 16: Normal Mode
5 ms, and It starts to send the wireless data through the serial port TXD Receiving pin. After all the wireless data are output through the serial port, the module outputs the EN to the high level. Shenzhen RF-star Technology Co., Ltd. Page 15 of 35... -
Page 17: Wake-Up Mode
(maximum 2 s) and average power consumption (minimum 30 A). 5.6 Sleep Mode When S0 = 1 and S1 = 1, the module works in sleep mode Type Unable to transmit. Transmitting Unable to receive. Receiving Shenzhen RF-star Technology Co., Ltd. Page 16 of 35... -
Page 18: Data Security
The specific encryption algorithm is used to encrypt the module data. After receiving the data, the receiving module can get the actual transmission data according to the encryption factor to avoid receiving the wrong information. Shenzhen RF-star Technology Co., Ltd. Page 17 of 35... -
Page 19: Module Functions
Figure 8. Transparent Transmission Function Diagram 6.2 Fixed Point Transmission The transparent data transmission under the different channel, the different module address and the different airspeed is shown in the figure below. Shenzhen RF-star Technology Co., Ltd. Page 18 of 35... -
Page 20: Broadcast And Listening
S1 and S0. Therefore, the user needs to wait for the EN rising edge as the starting point for the normal operation of the module. Shenzhen RF-star Technology Co., Ltd. Page 19 of 35... -
Page 21: Function
1. Wake-up MCU Figure 10. EN Timing Diagram of Wake-up Sleep MCU 2. Send indication Figure 11. EN Timing Diagram during Sending Data 3. Receive indication Shenzhen RF-star Technology Co., Ltd. Page 20 of 35... -
Page 22: Figure 12. En Timing Diagram During Receiving Data
When the EN output is always at high level, the mode switching will take effect immediately. ⚫ When entering from sleep mode to other modes or during reset, the module will reset the parameters, during which EN output is low. Shenzhen RF-star Technology Co., Ltd. Page 21 of 35... -
Page 23: Command Format
Supports the operation in normal mode, wake-up mode, and sleep mode. Note: Send AT_RSSI, return AT_RSSI=xx. Below the band of 525 MHz: Value = -157 + xx. Above the band of 779 MHz: Value = -164 + xx. Shenzhen RF-star Technology Co., Ltd. Page 22 of 35... -
Page 24: Parameters Of Command Setting
By default [00 00], the module address range is 0 ~ 65535, and in Hex [00 00] ~ [FF FF] 3. The third group of data represents: serial parity bit, serial baud rate, and air rate of wireless signal. Shenzhen RF-star Technology Co., Ltd. Page 23 of 35... - Page 25 For example: The parameters needed are the module address of 1000 (in decimal), the serial parity bit of 8N1, the baud rate of 19200, and air rate 19.2k. Expressed as: ⚫ Address is 1000 in decimal, and the hexadecimal representation is 0x03E8, express it as [03 E8]. Shenzhen RF-star Technology Co., Ltd. Page 24 of 35...
- Page 26 This bit is used to enable the internal pull-up resistor of the module. RXD open circuit input Open-drain mode has stronger level adaptability. In some cases, an TXD, EN push-pull output, RXD external pull-up resistor may be required. pull-up input Shenzhen RF-star Technology Co., Ltd. Page 25 of 35...
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Page 27: Examples
The parameters are modified to: module address of 1000, serial parity bit of 8N1, baud rate of 19200, air rate of 19.2k, channel of 6 (frequency 868) or channel of 15 (frequency 915), normal mode, push-pull output, wake-up time of 500 ms and transmit power of 30 dBm. Shenzhen RF-star Technology Co., Ltd. Page 26 of 35... - Page 28 00 111 010 115200 19.2k 00 111 101 9600 0.3k 01 011 000 9600 2.4k 01 011 010 9600 19.2k 01 011 101 115200 0.3k 01 111 000 115200 2.4K 01 111 010 Shenzhen RF-star Technology Co., Ltd. Page 27 of 35...
- Page 29 0 0 111 0 00 Transparent transmission Push-pull output 0 1 000 0 00 Transparent transmission Push-pull output 1000 0 1 011 0 00 Transparent transmission Push-pull output 1500 0 1 101 0 00 Shenzhen RF-star Technology Co., Ltd. Page 28 of 35...
- Page 30 Fixed point transmission Push-pull output 1 1 000 0 00 Fixed point transmission Push-pull output 1000 1 1 011 0 00 Fixed point transmission Push-pull output 2000 1 1 111 0 00 Shenzhen RF-star Technology Co., Ltd. Page 29 of 35...
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Page 31: Implementation
10. The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly weakened. Shenzhen RF-star Technology Co., Ltd. Page 30 of 35... -
Page 32: Trouble Shooting
4. If the extension wire or feeder wire is of poor quality or too long, the bit error rate will be high. 8.3 Electrostatics Discharge Warnings The module will be damaged for the discharge of static. RF-star suggest that all modules should follow the 3 precautions below: Shenzhen RF-star Technology Co., Ltd. -
Page 33: Soldering And Reflow Condition
Max. 6 ℃/s Average Descend Rate (T to T Time from 25 ℃ to Peak Temperature (t Max. 6 minutes Max. 8 minutes 20±10 s 20±10 s Time of Soldering Zone (t Shenzhen RF-star Technology Co., Ltd. Page 32 of 35... -
Page 34: Optional Packaging
RF-83UP www.szrfstar.com V1.3 - Jun., 2019 Figure 14. Recommended Reflow for Lead Free Solder 8.5 Optional Packaging Figure 15. Optional Packaging Mode Note: Default tray packaging. Shenzhen RF-star Technology Co., Ltd. Page 33 of 35... -
Page 35: Revision History
1. The document will be optimized and updated from time to time. Before using this document, please make sure it is the latest version. 2. To obtain the latest document, please download it from the official website: www.szrfstar.com. Shenzhen RF-star Technology Co., Ltd. Page 34 of 35... -
Page 36: Contact Us
RF-83UP www.szrfstar.com V1.3 - Jun., 2019 10 Contact Us SHENZHEN RF-STAR TECHNOLOGY CO., LTD. Shenzhen HQ: Add.: Room 601, Block C, Skyworth Building, High-tech Park, Nanshan District, Shenzhen, Guangdong, China Tel.: 86-755-3695 3756 Chengdu Branch: Add.: No. B3-03, Building No.1, Incubation Park, High-Tech District, Chengdu, Sichuan, China, 610000 Tel.: 86-28-6577 5970...
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