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Hallo! Once again, need some advices... As you can see on the picture i attached, it's a six wires motor stepper (an unipolar one, as far as i know), with a gear box. It's written on it = 12VDC Hz 4,5 W ; marked HURST ; RPM MODEL ABS ; P/N SP-3165 ; RED 250 5/88 Question: 1. I want to control it with a microcontroller (Atmel89C51), is a driver required? If it is, why and how? Because, a friend told me that it wouldn't need a driver, but with such stepper specification, i become hesitate. Is a ULN2003 would be enough? 2. How is it to determine which wires is COM and which wires is COIL? Wires colors : blue ; white ; white – bluestriped ; white – blackstriped ; black ; red 3. Based on what written on it, which one to determine the RPM or phase of the stepper? 4. How to test if a stepper work or not? That's all... Thanks very much.... is there anything that i should know about stepper, please inform me....

What is the brand and model number? Are there markings on the device to indicate this? MP >>MP: Unfortunately... it's a plain LCD, no brand, no model number, no markings at all.... so?

Hi everyone! Could someone tell me this 3.5 digit 7-Segment-LCD's pin configuration?