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AP-D5830A 30A 800W Hoogvermogen DC-DC Step-down Constante Spanning Constante Stroom Oplaadvoeding Module met Ventilatiekoeling
34,13€ 51,65€

Q: Hi, It is the first time for my device. I put 36volt dc into the device but nothing. What's append? Output zero.

gevraagd door adelco op 2021-11-02 07:07:12

johnkok did you try to short-circuit the two pins on the on-off connector?

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LILYGO® TTGO T-Call V1.3 V1.4 ESP32 Draadloze Module GPRS Antenne SIM-kaart SIM800L Board
17,52€ 35,05€

Q: Did anyone buy this and use it in Vietnam? if yes, which provider offers NB-IoT SIM cards? Thanks

gevraagd door Elkaybay op 2021-10-02 02:44:30

johnkok just note that as far as I know the module does not support 3G-4G, only GPRS-GSM.

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EleksMaker® Mana 3-assige stappenmotor Driver Board Controller voor doe-het-zelf lasergraveur
31,36€ 37,82€

Q: Does LA03-500 laser work with this?.

gevraagd door BG155733441 op 2021-03-31 01:49:49

johnkok I am not sure. You need a TTL-PWM input to control the laser beam. LA03-500 it seems that does not have.

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