![]() ![]() The table below summarizes the GPIO and Analog to Digital Converter input positions on the screw terminals. The internal Analog to Digital converter supports 12 bits resolution which is adequate for most applications. It is recommended to use a series resistor to protect the input from stray voltages and spikes. In contrast to GPIOs, Analog inputs can read voltages at any level between 0 to 3.3V volts. A 470 Ohms series resistor is recommended for current limiting when connecting LED to a GPIO. So no additional circuitry is needed to drive regular LEDs. In output mode, GPIOs can source up to 25mA. ![]() It is recommended to use a series resistor with the GPIO/ADC pins when interfacing with other circuits. The ADC can acquire analog signal at the resolution of 12 bits per sample. All IO pins support 3.3V TTL signals and the ADC input range is 0 to +3.3V. Some of these pins can be used as Analog to Digital Converter inputs as well. The module has 64 General Purpose IO pins that can be used for various custom applications. Also we have a large set of sample code to help you with)Īll aspects of the above steps are covered in the following sections including step by step demonstration. Optionally write a script or application to automate your task (More info on custom programming/scripting is available in this document.Enter commands (Very similar to entering commands at DOS prompt or Bash prompt).Open the COM port corresponding to the device using a Serial Terminal software.Driver available for download on the product page.) Install driver (Only needed for Windows.Connect the device to a USB port on the host system.Using this product involves the following simple steps. But in no way limited to this software though. This document has more information about using this device with the following Serial terminal software. Using this product is very easy, thanks to the human readable and easy to use command set and the USB CDC interface that allows the device to be used with most readily available serial terminal software such as Tera Term or HyperTerminal. When connected to PC, the module will appear as a serial port in Windows Device Manager (or a serial tty device in Linux and Mac). The module communicates with host PC over full speed USB link. The analog inputs (multiplexed with GPIOs) can be accessed over USB interface for extended functionality. This module has 64 on board General purpose I/Os multiplexed with 32 Analog Inputs, each connected to individual screw terminals and associated drivers capable of controlling a large number of devices. Visual Basic for Applications (Microsoft Office VBA)Ī complete list of sample code is available here.Visual Basic (VB6, VB2008, VB2010 express and other editions).Or any other operating system that supports USB CDC devices.Īnd these are some of the languages that can be used for programming:.Windows XP and later versions (Windows 7, 8/8.1, 10 and future versions).This product is compatible with the following operating systems: Some of the possible uses of this module includes: Can be controlled by using standard serial console applications or custom applications.Can be powered from USB or external power supply.All IOs available on easy to access screw terminals.As easy as using a serial port, no USB knowledge required 32 analog inputs with 12-bit resolution (multiplexed with digital IOs).For power users, this module can be controlled by writing programs in various programming languages. This simplicity allows use of off-the-shelf Terminal Emulation programs such as Hyper Terminal and PUTTY for controlling the module with a simple set of human readable commands. Built in USB to serial conversion allows the module to be used without any USB specific knowledge. Ease of use and wider operating system compatibility are the primary goals behind this product’s design. Numato Lab’s 64 Channel USB GPIO Module is a versatile product for controlling electrical and electronic devices remotely from a PC over USB link.
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