Pycom LoPy4 개발보드 -LoRa, Sigfox, WiFi, Bluetooth
(Pycom LoPy4 Development Board)
개요
- 본 제품은 Pycom사의 LoPy4 개발보드입니다.
- 4가지 네트워크(LoRa, Sigfox, WiFi, Bluetooth)를 지원하는 MicroPython 개발보드로 IoT 프로젝트에 적합합니다.
- ESP32을 장착하고 있으며, LoRa nano 게이트웨이 및 multi-bearer(LoRa, Sigfox, WiFi and BLE) 개발 프랫폼으로 사용이 가능합니다.
- MicroPython으로 프로그래밍이 가능하며, Pymakr 플러그인으로 빠른 IoT 어플리케이션 개발이 가능합니다.
- 알림: LoRa 및 Sigfox 라디오를 안테나 없이 사용하면 디바이스가 손상 받을 수 있습니다.
특징
- Powerful CPU, BLE and state of the art WiFi radio
- Can also double up as Nano LoRa gateway
- MicroPython enabled
- Fits in a standard breadboard (with headers)
- Ultra-low power usage: a fraction compared to other connected micro controllers
- Espressif ESP32 chipset
- Dual processor + WiFi radio System on chip
- Network processor handles the WiFi connectivity and the IPv6 stack
- Main processor is entirely free to run the user application
- An extra ULP-coprocessor that can monitor GPIOs, the ADC channels and control most of the internal peripherals during deep-sleep mode while only consuming 25uA
- Sigfox Specification
- Class 0 device. Maximum Tx power:
- RCZ1 – 868MHz, +14dBm (Europe)
- RCZ2 – 902MHz, +20dBm (Americas)
- RCZ4 – 920-922MHz, +20dBm (Australia and New Zealand)
- Node range: Up to 50km
- Sigfox certified
- LoRa Specification
- Semtech LoRa transceiver SX1276
- LoRaWAN stack
- Class A and C devices
- 868 MHz (Europe) at +14dBm maximum
- 915 MHz (North and South America, Australia and New Zealand) at +20dBm maximum
- 433 MHz (Europe) at +10dBm maximum
- 470 – 510 MHz (China) at +14dBm maximum
- Node range: Up to 40km
- Nano-gateway: Up to 22km
- Nano-gateway capacity: Up to 100 nodes
- 2 x UART, SPI, 2 x I2C, I2S, micro SD card
- Analog channels: 8×12 bit ADCs
- Timers: 4×16 bit with PWM and input capture
- DMA on all peripherals
- GPIO: Up to 24
- RAM: 4MB
- External flash: 8MB
- Hash / encryption: SHA, MD5, DES, AES
- WiFi: 802.1b/g/n 16mbps
- Bluetooth: Low energy and classic
- RTC @ 32kHz
- Power
- Input: 3.3V – 5.5V
- 3v3 output capable of sourcing up to 400mA
- WiFi: 12mA in active mode, 5uA in standby
- LoRa: 15mA in active mode, 1-uA in standby
- Sigfox (Europe): 12mA in Rx mode, 42mA in Tx mode and 0.5uA in standby
- Sigfox (Australia, New Zealand and South America): 12mA in Rx mode, 120 mA in Tx mode and 0.5uA in standby