The UNO R3 compatible board supports higher current demands as well as offering other useful additional features
Many contemporary embedded system designs will need quite a substantial amount of current in order to power all the constituent elements - as well as running a TFT display there might be the need to drive a motor, illuminate LEDs, maintain a WLAN datalink, etc. This can easily add up to 400 mA or 500 mA or even more. With a standard UNO board (and likewise with the many clones now available) the LDO voltage regulator will tend to dissipate a sizeable amount of heat when handling these sort of currents (the units’ temperature being pushed from over 90°C to 100°C). This inefficient operation means that the power consumption is raised, as energy is unnecessarily wasted. It can also lead to reliability problems.
Thanks to the energy efficient switching regulator that has been incorporated into NerO, it is capable of supplying a full 1A with its temperature being well below 100°C at maximum load. This Arduino UNO R3 compatible board covers an input voltage of 7V to 20V (with 9V or 12V recommended). It is supplied with FCC and CE certification, so operational integrity is assured. Placed in an attractive price bracket (under $20), NerO has a 16 MHz ATmega328 microcontroller with Optiboot bootloader. FTDI’s FT231XS takes care of USB connectivity providing more reliable communications and FTDI’s renowned drivers and support. A micro-USB connector is specified, rather than the bulkier full size type B connector used on UNOs. This means that the board is more in line with the requirements of larger volume commercial designs, as well as those of hobbyists. As per UNO, NerO has 14 digital interface pins plus 6 analogue inputs. As the status and PWR LEDs are located at the edge of the PCB, it ensures they remain fully visible even when an Arduino shield has been attached. An on/off switch allows the unit to be powered up or down as needed, for greater convenience.