Ref. 08-07-V5-lmn
p. 1
A
RF
44
UART TTL modules
User Guide
Страница 1: ...Ref 08 07 V5 lmn p 1 ARF44 UART TTL modules User Guide...
Страница 2: ...aper version photocopy without Adeunis RF consent This document is subject to change without notice All trademarks mentioned in this guide are the property of their respective owner ADEUNIS RF 283 rue...
Страница 3: ...ons are noted from module point of view 5 Radio Communication 5 Available Channels 5 Channel selection 6 Antenna requirements 6 Transceiver operating mode 7 Serial data rate 8 Command mode 8 Transceiv...
Страница 4: ...ARF44 User Guide Ref 08 07 V5 lmn p 2 About this Document This guide describes the ARF44 devices their options and accessories TOP...
Страница 5: ...he body could be required depending on the module integration Warnings CE marking applies only to End Products Because this equipment is only a subassembly conformity testing has been reduced equipmen...
Страница 6: ...to a similar piece of equipment The communication is half duplex The operating parameters of these radio transceivers can be fully updated through AT commands via the serial link Interface Mechanical...
Страница 7: ...OUT 24 GND RF Masse radio connected with digital GND Serial interface 14 RxD I Serial input 16 TxD O Serial output Powerdown 4 Power down I Powerdown mode management leave unconnected if not used Not...
Страница 8: ...nted antenna An external one has to be added to achieve correct communication between the products Several possibilities The best technical economical compromise is a wave 8 6 cm length antenna solder...
Страница 9: ...indication Use this level with care due to the dispersion between components The schema above could be modified from one to another product The operating temperature could also have an impact on thes...
Страница 10: ...ng AT command NOTE The AT command can be locked using ATPWD command In command mode the radio is inhibited reception and transmission excepted when using test command Entering command mode issues on t...
Страница 11: ...unication is always half duplex The radio transmission is processed prior to the radio reception when the transceiver is sending a radio frame it is not able to decode any incoming radio frame If no d...
Страница 12: ...ms The pull up on the pin is by passed during powerdown to get the better powerdown consumption The powerdown mode is exited by actively driving the powerdown pin to VCC The mode is deactivated by the...
Страница 13: ...switch on the modem the EEPROM configuration will be loaded in the modem registers AT S Displays all register values The response has the following format Sxxx y cr lf for each register AT V Software...
Страница 14: ...isters To save current register configurations it is necessary to use the AT W cr command If not the updated parameters are lost in case of power shortage The registers are shared in 2 types read only...
Страница 15: ...characters are detected on the serial link the radio frame will be discarded and the serial incoming data will be processed Processing incoming serial data the incoming serial data are internally buff...
Страница 16: ...No parity No flow control UART TTL ports TxD RxD Transceiver mono mode Transparent Programmable Frequency 863 to 870 MHz Europe Fixed Radiated RF power 9 dBm Sensitivity Down to 103 dBm for 10 3 PN9 O...
Страница 17: ...Firmware and document updates Firmware Updates V1 00 Initial version V1 01 RSSI and pin code added Document Updates 07 06 V1 smn Initial version 08 01 V2 smn Update the mechanical schematic 08 05 V4...
