The CodeCell C3 is a compact electronic development module measuring just 1.85cm wide. It features an Arduino-compatible ESP32-C3 microcontroller with Wi-Fi 4 and Bluetooth Low Energy 5 connectivity, battery charging, power management, ambient-light and proximity sensing, and a BNO085 9-axis motion sensor.

CodeCell C3 provides six programmable GPIO pins, I²C connections and multiple power connections for compatible modules, sensors and actuators. This makes it particularly suitable for miniature robots, wearable devices and other compact DIY electronic projects.

The module can be powered through USB-C or a compatible single-cell LiPo battery. USB-C supports programming, serial communication and battery charging. The BQ24232 power-management IC allows the battery to charge while the project continues operating.

The VCNL4040 measures ambient light and proximity at distances of up to approximately 20 cm. The BNO085 combines a 3-axis accelerometer, gyroscope and magnetometer with onboard sensor fusion. It can provide orientation, motion state, activity classification, acceleration, tap detection and step-count data.

The CodeCell.h Arduino library provides ready-to-use functions, tutorials and example projects. CodeCell can also connect to the MicroLink app for wireless controls and real-time sensor feedback.

Each box includes one CodeCell C3, four M1.2 screws, three sets of female headers and a 1.25 mm battery cable. Headers are supplied unsoldered or pre-soldered, depending on the selected variant. Battery variants also include a pre-wired 170 mAh, 3.7 V, 20C LiPo battery.

The optional battery measures approximately 23 × 17.5 × 8.7 mm, weighs 4.6 g and connects directly to the onboard battery connector. Its battery datasheet is available online.

CodeCell C3 Specifications:

• Electrical:
  • Processor: ESP32-C3-MINI-1-N4, 32-bit RISC-V single-core
  • Memory: 4 MB flash and 400 KB SRAM
  • Connectivity: Wi-Fi 4 and Bluetooth Low Energy 5
  • Maximum clock speed: 160 MHz
  • Sensors: Ambient light, proximity and BNO085 9-axis IMU
  • GPIO: 6 programmable GPIO pins and I²C
  • Average sleep current: Approximately 476–860 µA, depending on configuration
  • LiPo battery charging current: Approximately 90 mA
  • Maximum output current: 1,500 mA from a suitable battery or 450 mA from USB
• Mechanical:
  • Dimensions: 9.4 mm H × 18.5 mm L × 18.5 mm W, plus 5.2 mm antenna section
  • Castellated pin pitch: 2.54 mm
  • Screws: M1.2, included
  • Weight: Approximately 3.4 g

CodeCell is an electronic development module intended for integration into prototypes and DIY electronic projects. It is not a finished standalone appliance or a toy. Supporting compliance records are maintained for the PCB assembly, specified components and supplied accessories. The designer or manufacturer of any completed product incorporating CodeCell is responsible for assessing that finished product against all applicable safety, radio, EMC, environmental and other regulatory requirements. For commercial product integration, please get in touch.

CodeCell is a low-voltage electronic development module intended for DIY projects, prototyping and educational electronics. It is not a toy or a finished standalone appliance.

• Power CodeCell through USB-C or a compatible single-cell 3.7 V rechargeable LiPo battery.
• Check the battery connector polarity before use. Do not connect a damaged, swollen or leaking battery.
• Avoid short circuits, liquids, excessive heat and contact between exposed connections and conductive objects.
• Do not exceed the electrical ratings shown in the specifications. External motors or other high-current devices may require a suitable driver and power supply.
• Disconnect power before soldering or modifying connections. Young makers should work under responsible adult supervision.
• The supplied screws, headers and battery cable are small parts and should be kept away from young children.

When integrating CodeCell into a completed project, the maker is responsible for ensuring that its battery, power supply, wiring, connected devices, mounting and enclosure are safe and suitable for the intended use.

Orders are dispatched from Malta and are available for international shipping to supported destinations. Available shipping methods, estimated delivery times and shipping costs are displayed at checkout. Deliveries outside the European Union may be subject to local import duties, taxes or customs fees.

Variants supplied with a LiPo battery can only be shipped using supported battery-compatible services, normally DHL or FedEx. Shipping availability therefore depends on the destination.

Product: CodeCell C3
Country of Origin: China
Manufacturer: Microbots Ltd.
Postal Address: Birżebbuġa, Malta
Email: info@microbots.io

SKU — Unsoldered, battery cable: MB-MM-CD-05
SKU — Unsoldered, 170 mAh 20C LiPo: MB-MM-CD-06
SKU — Soldered headers, battery cable: MB-MM-CD-07
SKU — Soldered headers, 170 mAh 20C LiPo: MB-MM-CD-08