E-Power Aria 35A AM32 Brushless ESC
E-Power Aria 35A AM32 Brushless ESC
The E-Power Aria 35A AM32 brushless ESC brings open-source AM32 firmware to a compact, capable ESC suited for beetleweight drive and weapon systems. Running on the same proven Aria hardware platform, the 35A delivers smooth, responsive control on 3S-6S LiPo in a lightweight 32×16mm package. Forward-only by default — ideal for weapon systems. Bidirectional operation can be enabled via AM32 Configurator. Need more headroom? Check out the E-Power Aria 70A AM32 ESC.
$32.99
7 in stock (can be backordered)
E-Power Aria 35A AM32 Brushless ESC
The E-Power Aria 35A AM32 ESC is a compact, versatile brushless speed controller built for beetleweight combat robotics — capable as both a weapon ESC and a drive ESC. Running on AM32 — the open-source firmware successor to BLHeli_32 — the Aria 35A delivers smoother low-speed control, better torque response, and active community development that BLHeli_32, now discontinued, can no longer offer. For builders who want a future-proof ESC in a small, light package, this is the one.
E-Power has been manufacturing brushless ESCs and RC electronics since 2007, with CE, ROHS, and FCC certification. The Aria series represents their combat-ready line — mature, well-understood hardware now running the AM32 firmware platform that the combat robotics community has embraced as the standard going forward.
At 35A continuous on 3S-6S LiPo in a 32×16mm (1.25×0.64in) package weighing just 8g (0.3oz), the Aria 35A is one of the lightest and most compact options available for beetleweight builds. Forward-only by default, with bidirectional operation available via AM32 Configurator for drive applications.
These AM32 ESCs work out of the box, but advanced users can configure their ESC parameters via a programmer like the Pearl Grey ESC Programmer USB-C. Using this ESC as a drive controller does require programming the ESC and setting the mode to bidirectional to allow reverse driving.
Need more current headroom for a heavier weapon system? The E-Power Aria 70A AM32 ESC is the next step up. Prefer the established BLHeli_32 ecosystem? The E-Power Aria 35A BLHeli_32 ESC runs identical hardware with BLHeli_32 firmware.
Specifications
| Specification | Value |
|---|---|
| Firmware | AM32 (open-source) |
| MCU | STM32F051 32-bit ARM Cortex 48MHz |
| Continuous Current | 35A |
| Burst Current | 40A (≤10s) |
| Input Voltage | 3S-6S LiPo (9.9V–25.2V) |
| Length | 1.25in (32mm) |
| Width | 0.64in (16mm) |
| Height | 0.22in (5.6mm) |
| Weight | 0.3oz (8g) |
| Wire Gauge | 18AWG |
| PCB | Multilayer thickened PCB |
| PWM / Protocol Support | Dshot 150/300/600/1200, Oneshot125/42, Multishot, PWM up to 500Hz |
| Direction | Forward only (default); bidirectional via AM32 Configurator |
| BEC | No |
| Current Sensor | Yes |
| Temperature Sensor | Yes |
| Status LED | RGB |
| Firmware Upgradeable | Yes, via signal wire |
| Programmer | Pearl Grey ESC Programmer USB-C |
Frequently Asked Questions
My ESC arrived with “BLHeli_32” printed on the label — is this the right product?
Yes — the E-Power Aria 35A AM32 ESC uses the same hardware as the BLHeli_32 version, and the physical label on the board reflects that. The difference is firmware only. E-Power flashes AM32 onto this hardware before it ships, but the label is not updated to reflect the firmware version. If you connect it to the AM32 Configurator, you will see AM32 firmware running on the board.
What is AM32 and why does it matter?
AM32 is an open-source brushless ESC firmware platform and the active successor to BLHeli_32, which is no longer in development. AM32 offers smoother low-speed control, better torque response for sensorless motors, and an active development community — all of which matter in combat robotics where weapon spin-up behavior and drive feel are critical. For new builds, AM32 is the future-proof choice.
This says forward only — can I enable reverse?
Yes — forward-only is the default configuration, which is correct for most weapon applications. Bidirectional operation can be enabled through the AM32 Configurator using a Pearl Grey ESC Programmer USB-C or other ESC programmer.
Do I need to program this ESC before use?
No — the Aria 35A works out of the box for brushless weapon motors in forward-only mode. Programming is optional and only needed if you want to change firmware settings such as direction, braking, PWM frequency, or throttle response. If you do want to configure it, the Pearl Grey ESC Programmer USB-C is compatible with AM32.
If it works without reprogramming, why would I want to reprogram it?
The sport has used off-the-shelf ESCs for years. However, if you are an advanced user and a top competitor — particularly if you are using advanced weapon motors or running this ESC as a drive ESC — changing parameters can improve performance and mitigate certain issues. Think of it as the difference between an off-the-lot car and a NASCAR: one is optimized for competition, but most of us would never need that level of tuning.
Does this ESC include a BEC?
No — the Aria 35A does not include a Battery Eliminator Circuit. In a typical combat robot wiring setup, receiver power is supplied by your drive ESCs or a dedicated BEC. This is standard for high-current weapon ESCs and keeps the design simple and lightweight.
What is the difference between the 35A and 70A versions?
The 35A is smaller and lighter — ideal for drive systems and lighter weapon motors in beetleweight builds. The Aria 70A provides more current headroom for heavier weapon systems where sustained high current draw is expected. Both run AM32 firmware on the same Aria hardware platform.