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Geekcreit® Mini Digital Voltmeter Ammeter DC 100V 10A Voltmeter Current Meter Tester Blue+Red Dual LED Display
US$7.49

Q: Do you have a wiring diagram of the Volt/Amp meter?

Asked by Wipo571108 on 2019-04-02 02:40:06

acontini yes in the product page there are 2 possible wiring diagrams

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LILYGO® TTGO ESP32 WiFi + bluetooth 18650 Battery Protection Board 0.96 Inch OLED Development Tool
US$13.29 US$23.99

Q: Can i power 5v relay with this board using 18650 3.7v 3000mah Li-ion Battery ?

Asked by mahipat on 2018-03-01 10:30:21

acontini the 5v pin is at 5v only when the board is connected to the USB or other 5v external power supply.

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Geekcreit® Spectrum Analyzer USB LTDZ 35-4400M Signal Source with Tracking Source Module RF Frequency Domain Analysis Tool With Aluminum Shell
US$59.99 US$67.99

Q: Can it work with Ubuntu Linux?

Asked by rodolfojmartinez3 on 2019-09-20 08:28:41

acontini yes, search the VMA's Satellite Blog on blogger for more info. I use it with Debian

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GPRS GSM Module A9 Core Board Pudding Development board SMS Voice Wireless Data Transmission IOT
US$8.98 US$15.99

Q: Does this use the 2G network? If so, no good for me. 2G not available in Canada.

Asked by dixonpete on 2020-04-14 08:52:47

acontini yes, the module is GPRS-2G so It looks like you'll have issues in Canada. I can suggest SIMCOM HSPA-3G or LTE-4G (with correct bands) modules

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