Previous FUNSR6 Features:
- Metal arm;
- Expansion board;
- Upgraded to full-metal servo with suspension technology;
- Supports DC power supply for the ESP32, among other functions.
This time, we are launching a comprehensive update for the FunSR6.
New Calibration method
There is no need to restart and check after adjusting the angle each time. With just one connection, you can intuitively observe the device changes resulting from modifications to the servo position data.
Currently supports calibration for OSR2 and SR6 (requires flashing specific firmware, which is a secondary development based on the original Tempest firmware and supports Bluetooth and USB connectivity).
Better Servos
Previously H200: brushless, all-metal steel gear servo.
Now it’s the H300: magnetic encoder, brushless, steel gear, full-metal servo.
Difference Between Magnetic Encoder and Non-Magnetic Encoder：
Longer Service Life: Adopts non-contact magnetic field detection with no physical wear, making the robotic arm more durable for long-term use.
More Stable Operation: Less affected by aging and temperature drift, ensuring more reliable precision during prolonged operation.
Redesigned expansion board with the following new features:
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Hardware Overvoltage Protection
Some users previously reported damage to chips or servos caused by mistakenly using power supplies for the FUNSR1 series or HANDY on the SR6. Overvoltage protection has now been added: incorrect power connection will no longer damage the device. -
Reverse Polarity Protection & USB Backflow Prevention
- Prevents burnout caused by reverse connection of positive and negative power poles during wiring.
- Prevents current from external power sources (such as 7.4V/12V batteries or power adapters) from flowing back into the USB port and burning out the chip.
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Optimized Capacitors High-capacity capacitors ensure stable high-current power supply for servos.When multiple servos of the robotic arm actuate simultaneously, a large instantaneous current is drawn. High-capacity capacitors can discharge rapidly to supplement the current, buffer voltage drops, and ensure stable servo operation without jitter, missed steps, or unexpected restarts.
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Built-in Temperature Sensor During prolonged high-load operation or stall conditions, servos draw significantly higher current and generate substantial heat, which can lead to overheating and damage.The temperature sensor acts as the last line of defense, protecting the device from damage and extending its service life.
To demonstrate the effect more quickly in the video, a hot air gun was used for heating.
Function Optimizations:
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Added cooling fan
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Servo frame upgraded to full-metal frame
Offline Mode：
When the device is not receiving external data, it can generate internal data via its firmware to drive movement, supporting acceleration and deceleration across five speed levels.
New color scheme
The design is inspired by the Gundam model on my colleague’s desk.
Community Benefits:.
Enjoy a $20 coupon if purchased before April 19.
Coupon Name: FUNSR6
Purchase Link:
Looking forward to everyone sharing their genuine unboxing experience.
Thank you for your support.
The app under development
