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In AmigaOS one can use the i2c.resource component [25] for AmigaOS 4.x and MorphOS 3.x or the shared library i2c.library by Wilhelm Noeker for older systems. Arduino developers can use the "Wire" library. CircuitPython and MicroPython developers can use the busio.I2C or machine.I2C classes respectively.
English: Sample Inter-Integrated Circuit (I²C) schematic with one master (a microcontroller) and three slave nodes (an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), and a microcontroller)
ICs using bipolar junction transistors have V CC (+, positive) and V EE (-, negative) power-supply pins – though V CC is also often used for CMOS devices as well. [2]: 71
Vcc Vcc Type 4 DIR EN SenseA SenseB GND Vcc Type 5 (dual H-bridge) DIR1 EN1 DIR2 EN2 GND Vcc Type 5A (extended dual H-bridge) DIR1 DIR2 EN1 EN2 Sense1A Sense2A Sense1B Sense2B GND GND Vcc Vcc Type 6 nc/INT nc/RESET SCL SDA GND Vcc Type 6A (extended I2C) nc/INT GPIO nc/RESET GPIO SCL GPIO SDA GPIO GND GND Vcc Vcc Type 7 LRCLK GPIO DACdata
NPN open collector output schematic. A signal from an IC 's internal function is applied as the base input for a NPN BJT transistor, which controls the transistor's switching to the IC's ground. The external output is the transistor's collector.
To begin communication, the SPI main first selects a sub device by pulling its CS low. (Note: the bar above CS indicates it is an active low signal, so a low voltage means "selected", while a high voltage means "not selected")
The following table is split into two groups based on whether it has a graphical visual interface or not. The latter requires a separate program to provide that feature, such as Qucs-S, [1] Oregano, [2] or a schematic design application that supports external simulators, such as KiCad or gEDA.
The System Management Bus (SMBus or SMB) is a single-ended simple two-wire bus for the purpose of lightweight communication. Most commonly it is found in chipsets of computer motherboards for communication with the power source for ON/OFF instructions.