Pycom SiPy RCZ1 & RCZ3, Bluetooth Smart (BLE), SigFox, WiFi Development Board SiPy IoT RCZ1/3

  • RS Stock No. 125-9533
  • Mfr. Part No. SiPy RCZ1 & RCZ3
  • Brand Pycom
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

Pycom SiPy MicroPython WiFi/Bluetooth/Sigfox Development Board

The SiPy is a MicroPython enabled WiFi, Bluetooth and Sigfox development board designed specifically for IoT applications. At its heart is the Espressif ESP32 System on Chip (SoC) featuring a dual-core microcontroller, WiFi, Bluetooth, Sigfox and 512 KB RAM. All this power packed into a board measuring just 55 x 20 x 3.5 mm!

Knowledge of Python on a PC or Mac transfers directly to working with MicroPython and SiPy so the learning curve is minimal. Pycom have developed an intuitive API to help you get the most out of your board.

NOTE: An external antenna is required for the SiPy and using without an antenna can damage the device. The Pycom Antenna Kit is recommended and available from RS 125-9535.

Two versions are available depending on your location:

SiPy RCZ1/RCZ3 Europe / Japan / Korea - RS 125-9533
SiPy RCZ2/RCZ4 America, Australia, New Zealand, SE Asia - RS 125-9540

Integrated SoC with a powerful CPU, Bluetooth (Classic and BLE) and WiFi
Up to 1 km WiFi range
Network processor handles the WiFi connectivity and the IPv6 stack leaving the main processor free to run your application
Texas Instruments CC1125 High performance RF transceiver
Internal WiFi and Bluetooth Antenna and U.FL connector for external Sigfox antenna
2 x UART, 2 x SPI, I2C, I2S, micro-SD card, 8 x 12-bit ADCs, Up to 24 GPIO
WS2812 RGB multi-colour LED
Reset and RF switches
Compatible with standard breadboards using headers (RS 102-9147). Pycom offer an expansion board (RS 125-9534) featuring a micro-USB connector, button, LED and battery connector.
ULP-coprocessor monitors GPIOs, ADC channels and internal peripherals during deep-sleep mode while only consuming 25 uA
Size: 55 x 20 x 3.5 mm
Operating temperature: -40°C to 85°C


Input: 3.3 V to 5.5 V
WiFi: 12 mA in active mode, 5 uA standby
SiPy RCZ1/RCZ3 Europe / Japan / Korea: 17 mA in Rx mode, 47 in Tx mode and 0.5 uA in standby (RS 125-9533)
SiPy RCZ2/RCZ4 America, Australia, New Zealand, SE Asia: 24 mA in Rx mode, 257 mA in Tx mode and 0.5 uA in standby (RS 125-9540)

Sigfox Specifications

Maximum Tx power:
+14dBm (Europe)
+22dBm (America)
+22dBm (Australia and New Zealand)
Node range: Up to 50km
Sigfox pre-certified (October 2016)
Includes 12 months free subscription to the SIGFOX network. Following this we recommend taking out a subscription plan directly with Sigfox to suit your requirements. Please visit for more information.

WLAN (WiFi) - Pycom

Attribute Value
RF Technology Bluetooth Smart (BLE), SigFox, WiFi
Kit Classification Development Board
Kit Name SiPy IoT RCZ1/3
Frequency 2.4 GHz, 868 MHz
58 In stock - FREE next working day delivery available
Price Each
£ 25.23
(exc. VAT)
£ 30.28
(inc. VAT)
Per unit
1 +
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