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  • HarveyB9 commented on tttapa's instructable A beginner's guide to Arduino3 years ago
    A beginner's guide to Arduino

    with Ibase-emitter = 0.2A / 97 = 0.00206A ≈ 21mAIs not correct . Its 2.1mA (0.00206A x 1000 {to get mA From A} = 2.1) I guess you mean driving 2000mA load with Hfe 97, then all is good and tge resitor values will correct. I guess this is true as motors are quite often +500mA with stall around 3 to 6 times of run.... but i do like the article clear :-)

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