Firma 40A Brushed Smart 2-in-1 ESC and Receiver

The Firma 40 A Brushed Smart ESC with integrated DSMR/DSMR2 or SLT receiver is a purpose-built electronics system for crawler and scale models. It provides real‑time Smart telemetry, waterproof protection, programmable features and a clutter‑free setup in one compact unit.

Features

• Built-in 4‑channel DSMR/DSMR2 or SLT surface receiver
• Smart ESC telemetry sends motor current, battery voltage, ESC temperature and capacity data directly to compatible transmitters
• 3 A BEC at 6 V to power lights, winch and steering servos
• Waterproof, dust-resistant design for reliable performance in wet conditions
• Programmable parameters (e.g. low-voltage cutoff, throttle punch) via optional programmer box or SmartLink
• Convenient bind button and LED indicators for easy setup

What’s in the box

• Firma 40 A Brushed Smart 2‑in‑1 ESC & Receiver unit
• Product manual

Needed to complete

• Brushed 1/10 crawler or scale model
• 2S or 3S LiPo battery (IC3 or EC3 compatible)
• Full-range surface transmitter compatible with DSMR, DSMX or SLT protocols

Specifications

• Maximum continuous current: 40 A
• Burst current: up to 180 A
• Input voltage range: 2–3S LiPo (7.4–11.1 V); 5–9 cell NiMH
• BEC output: 6 V @ 3 A (switch-mode)
• Connector: IC3™ battery input; 4 mm bullet ESC output
• Receiver channels: 4 (no throttle servo port)
• Protocol: Dual (DSMR/DSMX & SLT)
• Reverse and braking: Supported
• Auto cut-off: Yes
• Overload protection: Yes
• Weight: approx. 62 g
• Dimensions (L × W × H): 54 × 21 × 34 mm
• Antenna length: 31 mm
• Water-resistant: Yes