modAR3201-F2 - RC Brushed Motor Controller with FlySky Receiver

Description

The modAR3201-F2 is intended for wireless drive control in lightweight RC constructions such as miniature vehicles, mobile robots, and small aircraft models weighing 25–100 g. The module integrates a FlySky AFHDS 2A RC receiver and two independent brushed motor ESCs on a single PCB, enabling direct control of two motors without the need for external ESCs.

Thanks to the dual ESC design, the controller supports differential drive, where the left and right motor speeds are controlled independently. This makes it ideal for wheeled and tracked vehicles that steer by varying motor speeds. An onboard DC/DC converter provides a stable 5 V output to power auxiliary electronics.

The module supports RSSI output and firmware updates, simplifying configuration and integration into more advanced RC systems. Its extremely compact size and very low weight allow installation in space- and weight-constrained designs without significantly affecting overall mass.

Features

• RC Receiver & Communication
  • Integrated RC receiver: FlySky AFHDS 2A
  • Compatible with FlySky transmitters
  • RSSI output
  • Firmware update support
• Motor Control
  • Number of ESCs: 2
  • Motor type: Brushed DC
  • Channels: 2 (2 × brushed motor ESC)
  • Maximum motor current: 7 A per channel
  • Differential drive support
• Power
  • Supply voltage: 2.5 – 5 V DC (1S LiPo)
  • Integrated DC/DC converter: 5 V / 1 A
  • No limitation when powered from an external BEC
• Physical Parameters
  • Dimensions: 22 × 16 × 6 mm
  • Weight: ~1.5 g
  • Designed for lightweight RC models
• Applications
  • Miniature RC vehicles with differential drive
  • Mobile and educational robots
  • RC models weighing 25–100 g
  • DIY projects using FlySky radio systems
  • Compact mobile platforms and experimental RC designs