Firmware & web flasher
Flash and configure the DRV1100BDV5straight from your browser — no toolchain, no drivers. Firmware is the driver: the same board keeps up as the platform gains features.
On this page
Requirements
Flash from your browser
Power & connect
Apply bus power to BAT+/BAT−, then plug a USB-C cable into the programming port. USB-C is programming-only and does not power the board.
Open the web flasher
Launch the browser flasher from the button above. No install — it runs entirely in the tab.
Select the serial port
Click Connect and choose the DRV1100BDV5 serial port from the browser prompt.
Flash
Pick a release and click Flash. Keep the tab focused and the cable connected until it completes.
Verify
The board reboots automatically. Confirm the new firmware version in About, then verify configuration, motor enable, effective inputs and faults before commissioning.
Firmware releases
| Version | Date | Notes | Actions |
|---|---|---|---|
| 0-5-0.18 Latest | Oct 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-3-1.2 | Aug 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-3-0.8 | Aug 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-11.10 | Aug 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-9.12 | Jul 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-8.6 | Jul 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-7.6 | Jul 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-6.30 | Jul 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-6.28 | Jul 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-5.7 | Jul 2026 | DRV1100BDV5 controller firmware and web interface. Supports full erase & factory reinstall. | |
| 0-2-5.2_2026-06-27 | Jun 2026 | — |
Configuration parameters
Configured in the controller’s built-in web app — join the board’s Wi-Fi access point, then use the Essential, Direction and Battery pages, plus Essential's Throttle/Brake tabs. Protection's Voltage/Temperature controls are available in Standard mode; its Current tile is Developer-only. Settings are stored on the controller and the firmware package supplies the board-aware defaults listed below.
Use the complete webapp handbook for visual workflows, dependencies and save behavior, or the paired Wi-Fi update guide for the controller's OTA wizard.
| Parameter | Range | Default | Description |
|---|---|---|---|
| Max drive current | 0–300 A effective | 50 A | Normal positive-drive authority, capped by the active board's 300 A peak capability |
| Max brake current | 0–100 A effective | 50 A | Normal brake-current authority, capped by the active board's continuous capability |
| Over-current stages | 100 / 200 / 300 A | 30 s / 2 s / immediate impulse | Overcurrent and surge qualify over their timers; a valid filtered sample at the impulse ceiling qualifies immediately. Staged protection/current authority is separate from normal drive/brake targets. |
| Undervoltage threshold | 0–655.35 V storage | Battery profile | Profile-derived trip and clear thresholds; active undervoltage inhibits throttle after the configured tolerance |
| Overvoltage thresholds | 86 V / 87 V critical | Board profile | Selectively inhibits drive; clearing requires throttle neutral before drive rearms |
| High-temperature threshold | 0–90 °C | 80 °C | Inhibits throttle at the threshold and clears below 75 °C with the default setting |
| Normal throttle ramps | Ramp-up / ramp-down seconds | 0.5 / 0.0 s | Controls requested throttle slew in Normal mode |
| Normal brake ramps | Ramp-up / ramp-down seconds | 0.5 / 0.0 s | Controls requested brake slew in Normal mode |
| Autobrake timer | Milliseconds | 250 ms | Delay before enabled autobrake applies |
| Throttle input | 0–3.3 V analog | — | Analog throttle signal — do not exceed 3.3 V |
| Direction inputs (IN1–IN4) | Captured O/H/L position patterns or Manual wiring | Board configuration | Captured positions match combined IN1–IN4 states; Manual wiring assigns supported input functions. Throttle mode (Variable Accelerator / Soft Start) is a separate choice. |
| Accessory outputs (OUT1 / OUT2) | Throttle, Brakes, Direction, Low Voltage, Faults | Configurable | Event that switches each low-side 12 V output |
Safety
Disconnect or mechanically secure the motor before flashing — verify motor enable, effective inputs and faults after reboot before commissioning. Never flash while the vehicle or machine can move. Do not remove power mid-flash; an interrupted update may require recovery via the web flasher’s repair mode.