With so many connectivity options, Pycom's LoPy4 is a lot like an amazing, multi-course brunch. You've got LoRa playing your favorite morning public access radio station, WiFi talking to your smart coffee maker, SigFox and cream cheese on a bagel, and a baker's dozen of Bluetooth muffins-- I mean, blueberry muffins!
Boosted with the Espressif ESP32 chipset, the LoPy is one of the fanciest quadruple-threat MicroPython-enabled microcontrollers. The wide choice of transports provides full flexibility during testing, install, deployment and even later when you want to switch how you send your data around. The LoPy4 has a built-in operating system that supports MicroPython, the lightweight cousin of the Python web programming language. You can use this board as is, or develop your application, then minimize the design with one of the smaller and simpler Pycom boards (if, say, you realize you don't need SigFox or LoRa)
Comes with just the dev board. You'll need an antenna for LoRa/SigFox, using LoRa/SigFox without an antenna can damage the board! An external antenna is recommended for WiFi/BLE (which has a ceramic antenna built in).
- 900 MHz Antenna Kit (LoRa and SigFox), you'll need 2 kits, one for each transport
- 2.4 GHz Antennas (for WiFi) - not required but will get you much better range than the built-in antenna
Features
- 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
- LoPy4 includes 2 years of Sigfox connectivity.
Note: If you want to connect LoPy4 via USB to your computer, you will also need either the Expansion Board 2.0, Pysense or Pytrack.
Check out the tutorials and quickstart guide at Pycom to see how fast it is to get going
Technical Details
Processing
– 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 Operating Frequencies
– RCZ1 – 868MHz (Europe)
– RCZ2 – 902MHz (US, Canada and Mexico)
– RCZ3 – (Japan and Korea)
– RCZ4 – 920-922MHz (ANZ, Latin America and S-E Asia)
Sigfox Specification
– Class 0 device. Maximum Tx power:
+14dBm (Europe)
+20dBm (America)
+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
LoRa Operating Frequencies
– 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
LoRa Range Specification
– Node range: Up to 40km
– Nano-gateway: Up to 22km
– Nano-gateway capacity: Up to 100 nodes
Interfaces
– 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
Security & Certifications
– SSL/TLS support
– WPA Enterprise security
– FCC – 2AJMTLOPY4R
– CE 0700
Memory
– RAM: 4MB
– External flash: 8MB
– Hardware floating point acceleration
– Python multi-threading
Hash / encryption
SHA, MD5, DES, AES
WiFi
802.1b/g/n 16mbps
Bluetooth
Low energy and classic
RTC
Running at 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
Size
Board dimensions (without headers): 55mm x 20mm x 3.5mm
For product support you can contact Pycom here
Product Weight: 6.7g / 0.2oz
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