The RP2040 Raspberry Pi Pico Meets LoRa

The Raspberry Pi Foundation's "Pico" board, which uses the RP2040 microprocessor, is the newest compact, fast, and adaptable Arduino Nano board. The board may be programmed using MicroPython and C/C++, as you may know. In this post, we'll go over everything you need to know about the Raspberry Pi Pico Lora Expansion.

Raspberry Pi Pico LoRa™ Expansion is a low-power data transmission board that includes an onboard CH340 USB TO UART converter, Voltage Level Translator (74HC125V), E22-900T22S/E22-400T22S SMA antenna connector that covers the 868MHz/433MHz frequency bands, Onboard 1.14" LCD, IPEX antenna connector, and LoRa™ Spread Spectrum Modulation technology with auto multi-level repeating. Pico LoRa™ Expansion can now be purchased on SB Components with two different frequency 868MHz/433MHz.

Pico LoRa Expansion

Raspberry Pi Pico LoRa™ Expansion Features

Onboard 1.14" LCD
Voltage Level Translator(74HC125V)
Communication range up to 5 KM
Supports auto repeating to transmit longer
Low Power Consumption
Highly Secured
For Evaluating signal quality with the RSSI or "Received Signal Strength Indicator"
Wireless parameter configuration support
fixed-point transmission support
SMA and IPEX Antenna Connector
USB to LoRa™ and Pico to LoRa™ Communication via UART
Comes with development resources and manual
LED Indicators:
- RXD/TXD: UART RX/TX indicator
- AUX: auxiliary indicator
- PWR: power indicator
Serial/USB selection jumpers:
- A: USB TO UART to control the LoRa module through USB
- B: control the LoRa module through Raspberry Pi Pico
Data/Command mode selection jumpers :
- Short M0, short M1: Transmission mode
- Short M0, open M1: Configuration mode
- Open M0, short M1: WOR mode
- Open M0, open M1: Deep sleep mode

Specifications

Frequency - 850.125~930.125MHz / 410~493MHz (Programmable Range)
Power - 22dBm
Distance - Up to 5 KM
Interface - UART Communication
Serial Port Module - E22-900T22S1B / E22-400T22S
Voltage Level Translator - 74HC125V

E22-900T22S1B:

Based on the SEMTECH SX1262, the E22-900T22S1B is a wireless serial port module (UART). It works in the frequency range of 850.125MHz to 930.125MHz and has numerous transmission modes. It uses the latest LoRa spread spectrum technology, which allows for longer transmission distances, reduced power consumption, and a smaller footprint than the SX1278, as well as WOR, wireless configuration, carrier sense, and relay networking.

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E22-900T22S1B Specification:

Adopts LoRa Spread Spectrum: Anti-interference, longer transmission distance, ensuring stable communication.
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E22 supports carrier sense: It can effectively avoid transmission of co-channel interference.
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E22 supports multi-level relay networking function.
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E22 supports remote configuration parameters: the parameters of the module are configured or read remotely by transmitting command data packets. The remote device can be parameterized without going to the site.
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E22 supports WOR function: WOR is suitable for the battery power supply, which can extend battery life.
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RSSI signal strength: E22 support "RSSI Signal Strength" to improve communication reliability.
Image Credit: ebyte.com