The 3.5 inch portable and standalone LCD digital microscope is an ideal product for you to share high definition microscopic observation with others.
It can support 32G TF card and also support USB connecting to the computer and TV. The biggest advantage of the UM038 is the high definition, for we adopts the imported microscope lens. It can display the vivid crystal image.
It helps you to see tiny objects easily with the professional microscopic lens. With 250X optical and 4x digital zoom, the magnification can be up to 1000x. The 8 bright LEDS, with brightness adjustable, is bright enough for perfect observation. 1050mAh rechargeable Li-ion battery provides a 2.5-3 hours alone working time. More exciting is the professional measurement software can help to measure size as small as 0.001mm, which is extremely helpful to your scientific researches.
With this microscope, you can enjoy your researches, or share them with your friends. It can be used for It is especially helpful and affordable for youngsters to do some basic researches.
HPD322 two-phase stepper motor driver is a cost-effective subdivision driver designed based on PI flow control algorithm. It has excellent performance, high speed and large torque output, low noise, low vibration and low heat.
The operating current and subdivision can be selected through the dial switch. There are 16 subdivisions and 16 currents to choose from. It has overvoltage, undervoltage, phase current and total current overcurrent protection. Its input and output control signals are all photoelectric. isolation.
Signal input: single-ended, pulse + direction and double pulse;
Built-in micro-subdivision; the maximum power supply can reach DC36V; the current is easy to set, 16 levels are optional, the output current peak can reach 2.2A; the current is halved after 1S of inactivity
Optically isolated differential signal input, the maximum input pulse frequency is 300KHz;
The pulse, direction and enable terminals all have constant current input functions and can be directly connected to the input signal without adding an external series resistor for voltage reduction and current limiting protection.
High reliability: using multi-layer boards and surface mount sealing, leaving sufficient margin for power devices