# Pycom LoPy4 > ESP32-based quad-network MicroPython board with WiFi, Bluetooth LE, LoRa (SX1276 868/915/433MHz), and SigFox. 4MB PSRAM, 8MB flash, 24 GPIO. Can function as a nano LoRa gateway. FCC/CE certified. ## Quick Facts - **Brand:** Pycom - **Board Type:** dev-board - **Price:** ~$49.95 - **Product Readiness:** developer - **CPU:** Espressif ESP32 dual-core Xtensa LX6 - **CPU Architecture:** Xtensa LX6 - **CPU Cores:** 2 - **RAM:** 4 MB - **Flash:** 8 MB - **Power:** 3.3V-5.5V via pin headers or Pycom expansion board - **Operating Voltage:** 3.3V - **Dimensions:** 55mm × 20mm × 3.5mm - **Weight:** 6.7g - **Antenna:** U.FL/IPEX - **SD Card:** microSD ## Connectivity - **Wifi:** 802.11 b/g/n - **Bluetooth:** BLE 4.2 - **Lora:** SX1276 868/915/433MHz ## Open Source - **Firmware:** Yes - **Schematics:** No - **PCB Layout:** No ## Certifications FCC, CE, RoHS ## Compatible Firmware micropython ## Use Cases - lorawan - lpwan - asset-tracking - iot-sensor-platform - nano-gateway - smart-agriculture ## Components - **ESP32** (mcu): Dual-core Xtensa LX6 at 240 MHz with integrated 802.11 b/g/n WiFi and Bluetooth 4.2/BLE. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32_datasheet_en.pdf&ref=openhardware.directory&product=pycom-lopy4&source=md-export) - **Semtech SX1276** (radio): LoRa/FSK transceiver supporting LoRaWAN Class A & C at 868/915/433MHz and SigFox multi-region. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsemtech.my.salesforce.com%2Fsfc%2Fp%2F%23E0000000JelG%2Fa%2F2R000000HSSi%2F71Zf0o7wgdTx3S7PpPOxgLDCVPAezDcnMlE4a2eZ9_k&ref=openhardware.directory&product=pycom-lopy4&source=md-export) ## Protocols - **I2C**: SDA: P9, SCL: P10 - **SPI**: MOSI: P10, MISO: P11, SCK: P12 - **UART**: TX: P1, RX: P0 - **WiFi**: - **Bluetooth**: - **LoRa**: ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | P0 | RX | UART | digital-input, digital-output | | P1 | TX | UART | digital-input, digital-output | | P2 | GPIO | — | digital-input, digital-output | | P3 | GPIO | — | digital-input, digital-output | | P4 | GPIO | — | digital-input, digital-output | | P6 | GPIO | — | digital-input, digital-output | | P7 | GPIO | — | digital-input, digital-output | | P8 | GPIO | — | digital-input, digital-output | | P9 | SDA | I2C | digital-input, digital-output | | P10 | SCL/MOSI | I2C | digital-input, digital-output | | P11 | MISO | SPI | digital-input, digital-output | | P12 | SCK | SPI | digital-input, digital-output | | P13 | GPIO | — | digital-input, digital-output | | P14 | GPIO | — | digital-input, digital-output | | P15 | GPIO/ADC | — | digital-input, digital-output, analog-input | | P16 | GPIO/ADC | — | digital-input, digital-output, analog-input | | P17 | GPIO/ADC | — | digital-input, digital-output, analog-input | | P18 | GPIO/ADC | — | digital-input, digital-output, analog-input | | P19 | GPIO/ADC | — | digital-input, digital-output, analog-input | | P20 | GPIO/ADC | — | digital-input, digital-output, analog-input | | P21 | GPIO | — | digital-input, digital-output | | P22 | GPIO | — | digital-input, digital-output | ## Available Software - **[MicroPython]()** (open-source) ## Description ## Overview The Pycom LoPy4 is a quad-network IoT development module combining Espressif ESP32 computing with WiFi, Bluetooth LE, LoRa, and SigFox connectivity. The "4" in LoPy4 denotes the fourth-generation board, introducing LoRaWAN Class A and C support alongside SigFox multi-region capability and the ability to function as a nano LoRa gateway — receiving from multiple nodes simultaneously. The onboard Semtech SX1276 LoRa transceiver operates at 868MHz (Europe), 915MHz (Americas/Australia), 433MHz, and 470-510MHz for Asian markets, with output power configurations up to 20dBm. LoRa achieves ranges up to 40km in line-of-sight conditions, while SigFox extends to 50km. WiFi reaches 1km and Bluetooth LE handles short-range connections — giving developers four complementary wireless options from a single 55mm × 20mm breadboard-compatible module. The dual-core ESP32 provides 4MB PSRAM, 8MB flash, hardware floating-point, and a ULP co-processor for ultra-low-power sensing tasks. Twenty-four GPIO pins are exposed with 8x 12-bit ADC, multiple UART/SPI/I2C/I2S interfaces, and a microSD slot. Security is handled in firmware: SSL/TLS 1.2, WPA Enterprise, AES, SHA, MD5, and DES algorithms are all supported. The LoPy4 ships with 2 years of SigFox connectivity included and is FCC (2AJMTLOPY4R) and CE certified. It is programmable via MicroPython using Pycom's open-source firmware and works with the Pymakr IDE for a productive workflow. ## Where to Buy - [Adafruit](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3689&ref=openhardware.directory&product=pycom-lopy4&source=md-export) — 49.95 ## Resources - [product page](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3689&ref=openhardware.directory&product=pycom-lopy4&source=md-export) - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.adafruit.com%2Fproduct%2F3689&ref=openhardware.directory&product=pycom-lopy4&source=md-export) - [documentation](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.pycom.io%2Fdatasheets%2Fdevelopment%2Flopy4%2F&ref=openhardware.directory&product=pycom-lopy4&source=md-export) - [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fcdn-shop.adafruit.com%2Fproduct-files%2F3689%2F3689_datasheet.pdf&ref=openhardware.directory&product=pycom-lopy4&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fpycom%2Fpycom-micropython-sigfox&ref=openhardware.directory&product=pycom-lopy4&source=md-export) ## Tags `lora`, `lorawan`, `sigfox`, `esp32`, `micropython`, `wifi`, `ble`, `iot`, `pycom`, `lpwan`, `nano-gateway` ## Images ![Pycom LoPy4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/pycom-lopy4/d74398ed322f.jpg) ![Pycom LoPy4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/pycom-lopy4/bf151b2feff3.jpg) --- [View full device page](https://openhardware.directory/devices/pycom-lopy4)