EnrgTech

Arduino Arduino boards embody multiple peripherals for communication with other devices. They include UART, I2C USB, and SP1. Wired communication has however proven to be difficult mostly so where the distance between the sender and receiver is considerable. As such, wireless communication comes in handy. Wireless communication is also critical in incorporating  Arduino boards  into the IoT environment. We have compiled several modules you can use to send data from an Arduino board to another Arduino or to the web. Wireless data transmission NRF24L01 The NRF244L01 transceiver module uses a 2.4GHz ban. It offers baud rates of between 250kbs and 2Mbps. In an open space and with lower baud rates, its range can stretch up to 100 meters. The NRF24LO1 can use 125 different channels which thus is able to have a network of 12 independent modems in one place. Each of the channels can have up to addresses or rather each of the units is able to communicate with 6 other units ...

Universal Serial Bus (USB) Charging smartphones has certainly become part of the daily activities to most of the people around the globe. In fact, many people have got their chargers plugged into the sockets and the  USB cables  plugged alongside. Almost all rechargeable gadgets come with full-sized USB micro USB cables. These USB cables are different qualities prompting the question, what is a high-quality USB cable? Does quality really make a difference? The different qualities of USB cables If you are keen, you must have noticed that some cables will charge the same smartphone faster than others despite using the same charger. Just to illustrate this, there is an on Android Play store called “Ampere”.  This app displays the current drawn by the battery current when plugged into the charger and the amount drawn by the phone contains when not plugged. We tried out two cables as shown below. In both instances, we used the same charger. We only changed the ...