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Summary of Contents for Eastern Times Technology ES50B
- Page 1 ES50B USER MANUAL Version: 1.0 1.PCB Layout 2.TECHNICAL PARAMETERS 2.1BLE Parameters Item Parameters Antenna Chipset NRF52832-QFAA Frequency 2.4G: 2402MHz~2480MHz Sensitivity -90 dBm -2.15 dBm Max out RF Power...
- Page 2 2.2 Other Parameters Item Parameters Core: NRF52832 Flash Memory:512 kB Ram: 64 kB Frequency: 2402~2480MHz Timing Report Reportstatus at pre-set intervals Audio Codec Buzzer 3.METER FUNCTION DESCRIPTION 3.1 Operation Function Function Item Function Description Headlight Control The headlights are turned on by default when the power is turned on. The headlights are turned off when the power is turned off.
- Page 3 above 4 km/h or 2.5mph. Speed Unit Switching The speed unit of kilometer or mile is controlled by app via Bluetooth. The speed unit can be changed by pressing the button 5 times. Online upgrade Controller firmware and instrument firmware can be upgraded through Bluetooth.
- Page 4 3.2 Error reporting Function Error Code Error Item Reasons Over current protection The current exceeds the limit. low-voltage protection battery voltage lower than 43V Short circuit of motor phase line Short circuit of motor phase line when unlocking Motor block protection Motor blocked or short circuit or drive failure Drive upper bridge failure Drive upper bridge MOS tube damaged or...
- Page 5 4.Display Function Powerbutton: Short press to turn on, long press for around 3s to turn off. Short press twice to switch among E level (pedestrian mode)/ L level (economical mode)/ H level (Sport mode) when power on. E level is pedestrian mode, the maximum speed is limited to 5 km/h, which is suitable for sidewalk implementation. L level is the economical mode, and the maximum speed is limited to 15 km/h.
- Page 6 FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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.
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