D66 Operation Manual
Version: V0.0.7
Date: 2026-04-16
Table of Contents
1. Revision History
2. Product Functions
3. Battery Charge & Discharge Protection Parameters
------------------------------------------------------------
1. Revision History
2024/11/05 Initial version V0.0.1 Zhang Yingcong
2024/11/07 Added solar panel detection, UART upgrade and demo mode V0.0.2
Zhang Yingcong
2024/11/21 Modified long press time and added aging test program V0.0.3 Zhang
Yingcong
2025/06/05 Modified battery charge/discharge temperature range V0.0.4 Tao
Yuling
2025/06/10 Added motor short circuit indication V0.0.5 Tao Yuling
2025/12/24 Adjusted D66 battery protection voltage V0.0.6 Tao Yuling
2026/04/16 Adjusted D66 idle exit time V0.0.7 Tao Yuling
2. Product Functions
2.1 Motor Up/Down Function
Short press the corresponding key for jog operation. Long press for 1 second for
continuous running; the green LED is on during operation. Short press any key to stop
running.
2.2 Power On/Off Function
Power off: Press Up and Down keys together for 5 seconds until red LED is on, then
short press Down key. Red LED stays on for 1 second.
Power on: Press Up and Down keys together for 5 seconds until red LED is on, then
short press Up key. Green LED stays on for 1 second.
No operation within 10 seconds exits setting mode. After power off, motor cannot be
controlled and red LED stays on for 3 seconds.
2.3 Low Voltage Indication
When voltage is low, red LED flashes quickly 3 times.
2.4 Type-C Charging Indication
Charging: Green LED steady on.
Abnormal: Green LED flashes every 0.5 second.
Fully charged: Green LED off.
2.5 Solar Panel Detection
Press Up and Down keys at the same time.
Solar panel normal: Green LED steady on for 1 second.
Solar panel abnormal: Red LED steady on for 1 second.
2.6 Serial Port Upgrade
Bootload mode:
Baud rate: 460800
Waiting for upgrade: Green LED flashes
Upgrading: Red LED flashes
APP mode:
Baud rate: 9600
Force entry to bootload: Power on while holding Up key until green LED flashes, then
release.
2.7 Demo Mode
Automatically runs up and down for 3 minutes every 10 minutes.
Enter/exit demo mode with a dedicated tool.
2.8 Aging Test Program
Sequence: Down 90s → Pause 20s → Up 90s → Pause 20s
Start/exit aging test with dedicated aging tool.
2.9 Motor Short Circuit Protection
When short circuit occurs at motor side, motor stops output and red LED flashes quickly
6 times.
3. Battery Charge & Discharge Protection Parameters
3.1 Discharge Protection
High temperature: 63°C Recovery: 60°C
Low temperature: -12°C Recovery: -9°C
Low voltage: 3.70V Recovery: 3.78V
Low voltage alert: 3.78V Recovery: 3.80V
3.2 Charge Protection
High temperature: 52°C Recovery: 49°C
Low temperature: -5°C Recovery: -2°C
Over voltage: 4.1V Recovery: 4.0V
Note: For 5V charging, only temperature protection is applied.
FCC Warning
This device complies with part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The device has been evaluated to meet general RF exposure requirement. The device
can be used in portable exposure condition without restriction.
