Module Information

Model: RC-TASK2-868

Description: 

ASK/OOK transmitter module with Crystal oscillator.

 

Vdc: 2.2 ÷ 3.6Volt

Current:  21/15mA

Frequency: 868.30MHz​

Power : 10dBm

Dimension: 20.32 x 11.43mm 

Model: RC-TFSK3-434

Description:

433.92MHz FSK Radio Transmitter Module - Standard Pinout .

 

 

Vdc: 2.4 ÷ 3.6Volt

Current: 14.5m

Frequency: 433.92MHz

Powe : 10dBm

Dimension: 20.32 x 11.43mm

 

Model: RC-TFSK4-434

Description :

433.92MHz FSK Transmitter Module - Standard Pinout.

 

 

Vdc: 2.4 ÷ 3.6Volt

Current: 14.5mA

Frequency: 433.92MHz

Power :  10dBm

Dimension: 30.5 x 10.3mm

Reference Schematics

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Information on the LORA tecnology

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© 2021 RadioControlli S.r.l.  VAT IT03939360610 All right reserved.

What is LoRa® modulation?

 

LoRa ™ (Long Range acronym) is a modulation technique devised by Semtech that guarantees long-range communications that are competitive with today's technologies. The modulation is based on spread-spectrum techniques and on the frequency variation (chirp) of the spectrum, with correction of FEC errors. LoRa® significantly improves receiver sensitivity and like other spread-spectrum modulation techniques uses the entire channel band to broadcast a signal; this makes it robust to noise and insensitive to frequency offsets caused by the use of internal oscillators in low-priced devices. LoRa ™ can demodulate signals with power up to -19.5 dB while many FSK systems (frequency shift keying) need a power of at least 8-10 dB to be correctly demodulated. LoRa modulation is the physical layer (PHY) that can be implemented on different network topologies and protocols such as Mesh, Star, 6lowPAN, etc.

 

What is a LoRa® gateway or concentrator?

 

LoRa ™ gateways or concentrators are designed to be used in star and long-range network architectures and are used in LoRaWAN ™ systems. They are multimodem and multichannel transceivers that can demodulate multiple channels simultaneously or multiple signals on the same channel, due to the properties of LoRa® modulation.

What is LoRaWAN ™?

 

LoRa® modulation is the physical layer (PHY), while LoRAWAN ™ is the MAC protocol that guarantees high channel capacity of the star and long range networks that the LoRa Alliance has standardized as a Low Power Wide Area Network (LPWAN). The LoRaWAN ™ protocol is optimized to use sensors with reduced battery consumption and includes different classes of end points depending on the need to favor network latency rather than battery life. It is entirely bidirectional and has been designed by security experts to ensure reliability and protection. The LoRaWAN ™ architecture has also been designed to locate and follow mobile data tracking objects, which is one of the fastest steps in the Internet of Things (IoT) applications.

SX1276 module
SX1276 module

For LoRa® devices, what is the current transmit power that can be achieved with the antenna?

 

The output power from the device pin is + 20dBm but that of the antenna, after filtering and matching becomes + 19dBm + /? 0.5 dB.

 

Is LoRa a mesh network, a point-to-point or a star network?

 

LoRa modulation is the physical layer so it can be used in multiple network topologies. A mesh network increases the spatial extent of the network but reduces capacity, increases synchronization overhead and lowers battery life due to synchronization between network nodes. Thanks to the characteristics of LoRa modulation, a mesh topology is not necessary to increase the range of users, so a star network is sufficient. The LoRaWAN protocol was chosen to optimize capacity, battery life and ease of installation.

What are the differences between the SX1272 transceiver and the SX1276?

 

The SX1272 has three programmable LoRa bandwidths: 500 kHz, 250 kHz and 125 kHz. It covers only the 850 MHz to 1GHz band. The SX1276 has 500 kHz to 7.8 kHz bandwidths and offers slightly higher reception sensitivity. It covers the bands 150 MHz, 433 MHz and 0.85-1 GHz

What are RadioControlli's LORA products?

 

RadioControlli produces the following modules based on Semtech chips :

 

                                            RC-SM1276-868    868MHz version     based on SX1276 

​                                            RC-SM1276-915    915MHz version     based on SX1276

                                            RC-SM1278-433    433MHz version     based on SX1278

                                            RC-LLCC68-868     868MHz version     based on LLCC68

                                            

 

What other long range products does RadioControlli provide ?

 

RadioControlli has a wide range of Long Range Transceivers based on technologies:

 

- Texas Instrument based

- STMicroelectronics based

 

Additionally, RadioControlli has developed a series of Long Range applications based on TI's CC1310 chip.

 

Long Range Radio Modem

Long Range Wireless Switch

SX1276 module
SX1276 module
SX1276 module

What are the latest projects of RadioControlli ?

 

The following LORAWAN modules based on STMicroelectronics' STM32WLE5JC chip 

have been recently developed:

 

                          RC-WLE5-868          868MHz version  with UFL connector

                          RC-WLE5-868-HA   868MHz version  with Helical Antenna

rc-wle5-868.jpeg

Has a LoRa radio modem been developed?

 

Using the RC-WLE5-868 and RC-WLE5-868-HA modules as hardware, RadioControlli has developed a LoRa radio modem application that can be used with AT commands (LoRa Transparent Transmission Protocol):

 

                          RC-RICK-868          Radio Modem 868MHz version with UFL connector

                          RC-RICK-868-HA   Radio Modem 868MHz version with Helical Antenna

                                            

wle5-usb
wle5-usb

LORA Radio Modem Evualation kit

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