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UNIVERSAL GSM SHIELD – The GSM library for Arduino
ByoeadminLet’s discover a useful library to manage various low-cost GSM/GPRS modules, in order to provide cellular connectivity to our Arduino projects. Second part. In the previous episode, we introduced the shield hardware and exposed the technical features and possible applications, as well as mentioned the library for Arduino, here we complete the previous speech…
Antennino: the low-power Arduino with Antenna – The Bootloader
ByoeadminLet’s discover how to load the bootloader on our IoT board, so to prepare it for the usage. You learned about Antennino when reading the first part of this article, in which we presented the project and described the hardware, in detail. Let’s resume the discussion from where we stopped, that is to…
Current sensor 20 A
ByoeadminBased on the ACS712ELCTR-20A-T chip of the Allegro, this current sensor is able to detect AC or DC current values between 0 and 20 A. It has 3 pins (power supply and analog output) and a 2-pole terminal to which the load will be connected as a traditional ammeter. On the output there will be…
Base for GSM Modem (Excluded)
ByoeadminBasic board to create, in combination with the FT1308M and FT1128M (not included), a complete GPRS modem to make data connections, calls, send sms. For example, it allows the use of GPS / GSM or GSM-only locators in point-to-point mode so as to instantly obtain positioning data and then follow movements directly. It allows direct…
Amplifier module
ByoeadminVoltage amplifier module that allows raising the level of any continuous or variable signal, provided that it is unidirectional. This amplifier can operate in both inverting and non-inverting modes. Supply voltage between 1.8 and 6 V, with a stand-by absorption of just 85 μA. All input and output contacts are available…
BATTERY SWITCH
ByoeadminGiven two batteries, it chooses the one to connect to the load based on the voltage measured at their poles. It can also be used to switch DC power supplies. The growing demand for portable devices capable of working where there is no power grid or it is not convenient to use it is…
