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Summary of Contents for DeLOCK 12951
- Page 1 User manual IoT LoRa Radio Module 868 MHz 20 dB TTL (3.3 V) Product-No:12951 User manual no:12951-a www.delock.com...
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Page 2: Specification And Parameter
1. Specification and parameter 1.1 Limit parameter Main parameter Performance Notes Min. Max. Voltage over 5.2V will cause permanent Power supply（V） damage to module Chances of burn is slim when modules Blocking power（dBm） are used in short distance Operating temperature（℃ ） 1.2 Operating parameter Main parameter Performan ce... -
Page 3: Size And Pin Definition
Communication interface @3.3V Package Connector 2.54mm Size 21 * 36mm Antenna SMA-K 50 ohm impedance 2. Size and pin definition Name Direction Function Input Work with M1 to decide 4 working modes of module (not suspended, if not used, could be grounded). （weak pull-up）... -
Page 4: Connect To Mcu
Input Work with M0 to decide 4 working modes of module (not suspended, if not used, could be grounded). （weak pull-up） TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can Input be configured as open-drain or pull-up input. Output TTL UART outputs, connects to external RXD (MCU, PC) input pin. -
Page 5: Function Description
4. Function description 4.1 Fixed transmission 4.2 Broadcasting transmission 4.3 Broadcasting address For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04; ... -
Page 6: Aux Description
When module is the transmitter (transparent transmission), all modules under channel 0x04 will receive the data, the purpose of broadcast is realized. 5.4 Monitor address For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04; ... -
Page 7: Configuration Procedure Of Module
When AUX=1, the user can input data less than 512 bytes continuously without overflow. Buffer (not empty): when AUX=0, the internal 512 bytes data in the buffer have not been written to the RFIC completely. If the user starts to transmit data at this circumstance, it may cause overtime when the module is waiting for the user data, or transmitting wireless sub package. -
Page 8: Operating Mode
After switching to new operating mode, it will not work in the new mode immediately until AUX rising edge lasts for 2ms . If AUX stays on the high level, the operating mode switch can be effected immediately. When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset process, the module will reset user parameters, during which AUX outputs low level. -
Page 9: Normal Mode (Mode 0)
swiftly. For example, when switching from transmitting mode to receiving mode, the user MCU can go dormancy before mode-switch, using external interrupt function to get AUX change so that the mode-switch can be realized. This operation is very flexible and efficient. It is totally designed on the basis of the user MCU’s convenience, at the ... -
Page 10: Command Format
In mode 2, it is required the data transmitter works in mode 1. The wireless module monitors the preamble code at regular time. Once it gets the preamble code, it will remain as receiving status and waiting for the completion of receiving the entire valid data package. -
Page 11: Default Parameters
6.1 Default parameters type Default parameter values：：C0 00 00 1A 17 44 Transmitting power Model Frequency Address Channel Air data rate Baud rate Parity E32-433T30D 433MHz 0x0000 0x17 2.4kbps 9600 6.2 Reading operating parameters Instruction format Description In sleep mode（M0=1，M1=1）， User gives the module instruction (HEX format): C1 C1 C1, Module C1+C1+C1 returns the present configuration parameters. - Page 12 00H-FFH High address byte of module ADDH （the default 00H） 00H-FFH Low address byte of module ADDL （the default 00H） UART parity bit UART mode can be different between communication parties SPED 8N1 (default) 8 E1 8N1 (equal to 00) TTL UART baud rate（bps）...
- Page 13 410~441MHz 4-0, channel (410M + CHAN*1M), default 17H（433MHz） In fixed transmission mode, the first three Fixed transmission enabling bit（similar to MODBUS） bytes of each user's data frame can be Transparent transmission mode used as high/low address and channel. The module changes its address and channel when transmit.
- Page 14 Air data rate is 2.4k Corresponding hexadecimal Support Delock If you have further questions, please contact our customer support support@delock.de You can find current product information on our homepage: www.delock.com Final clause Information and data contained in this manual are subject to change without notice in advance. Errors and misprints excepted.
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Page 15: Declaration Of Conformity
Products with a CE symbol fulfill the RED directive (2014/53/EU) and RoHS directive (2011/65/EU+2015/863), which were released by the EU-comission. The declaration of conformity can be downloaded here: http://www.delock.de/service/conformity WEEE-notice The WEEE (Waste Electrical and Electronic Equipment)-directive, which became effective as European law on February 13th 2003, resulted in an all out change in the disposal of disused electro devices.
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