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IOT Cricket - Wi-Fi module (IOT cricket)

Very easy to use, ultra-low power Wi-Fi module, which can run directly on batteries. Designed for developers at all skill levels from advanced to those just starting to build IOT devices.

Cricket is a perfect choice if you want to build IOT end nodes such as sensors, alarms, buttons, switches,  etc. to report data and events instantaneously from remote locations. What is really cool is the ultra-low power feature, which will make your devices to run on single batteries for a very long time (for years in many use cases).

With Cricket you can connect various peripherals to Wi-Fi out of the box; send data and events either within your local network or to the internet. Simply attach a battery and peripheral(s) to Cricket and your device is ready to go.

Cricket comes with a native support of MQTT and HTTP POST / GET protocols that allow you to integrate your devices to a huge ecosystem of software and internet services such as e.g. IFTTT, Zapier, Blynk, Home Assistant, Node-RED,, Google Docs, Emails, Mobile Apps, etc.

Cricket works with all standard Wi-Fi routers and it doesn't require IOT hubs. No coding/programming is required as it comes with pre-installed software. You configure Cricket entirely over the air either from a smartphone or a laptop (without fiddling and troubleshooting toolchains). It can be done either locally (toe_device WiFi hotspot) or remotely from COTA cloud service (



* Ultra-low power, deep sleeep 0.5uA, true 0A (i.e. in a button device)

* Operates directly on batteries 1.0V-3.5V (AA, AAA, AAAA, ...)

* Sends data and events with ~3 seconds latency

* Configurable Real-Time Clock (RTC) for regular wake ups

* Configurable MQTT brokers

* Configurable secure / non-secure HTTP POST/GET requests

* Configurable a battery monitor

* Configurable Analog or Digital inputs (for sensors)

* Built-in configurable temperature sensor

* Local configuration (directly on a Cricket over captive portal / WiFi hotspot)

* Remote configuration from the Cloud (optional)

* OTA firmware updates


Few examples of what you can build with Cricket:


Endless possibilities to build broad range of devices which report data in various forms to the internet / services / smartphones

Please check some of our projects (HERE) to get started with Cricket.

R329.90  Inc VAT
SIM7020E NB-IoT Module For Raspberry Pi Pico, for Asia, Europe, Africa, Australia (Sim for pico)
SIM7020E NB-IoT module for Pico

B1/B3/B5/B8/B20/B28 frequency band

Features at a glance

The Pico-SIM7020E-NB-IoT is an NB-IoT (NarrowBand-Internet of Things) module designed for Raspberry Pi Pico. It supports multiple NB-IoT frequency band, can be controlled via serial AT commands, and supports communication protocols like HTTP/MQTT/LWM2M/COAP, etc. Due to the advantages of low delay, low power, low cost, and wide coverage, it is the ideal choice for IoT applications such as intelligent instruments, asset tracking, remote monitoring, and so on.

  • Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series boards
  • UART communication, serial AT commands control, multiple communication protocols support, multiple cloud platform support
  • Integrates 3.7V Li-po battery connector and recharge circuit, allows being powered from external rechargeable Li-po battery, or recharging it in turn
  • 2x LED indicators, for monitoring the module operating status
  • Onboard Nano SIM card slot for NB-IoT specific card
  • Comes with development resources and manual (MicroPython examples)
Frequency bandLTE-FDD: B1/B3/B5/B8/B20/B28
Data rate26.15kbps (DL) / 62.5kbps (UL)
Communication interfaceUART
Baudrate300bps~921600bps (115200bps by default)
Applicable regionAsia, Europe, Africa, Australia
Power supplyExternal Li-po battery OR Raspberry Pi Pico USB port
Battery interface3.7V ~ 4.2V
Logical level3.3V
Module standalone currentIdle mode: 5.6mA
Sleep mode: 0.4mA
PSM mode: 3.4uA
Dimensions73.5 × 24.00mm

Raspberry Pi Pico header compatibility

the Pico can be SMD-mounted (left), or attached via female header (right)

connecting with other expansion module and antenna

Raspberry Pi Pico and other boards shown are NOT included.
The pin headers are NOT soldered by default.

Cloud Communication

Supports communication protocols including: TCP/UDP/HTTP/HTTPS/MQTT/LWM2M/COAP/TLS

Pinout definition

Outline dimensions

R349.90  Inc VAT
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