Pull-up resistors are very common when using microcontrollers (MCUs) or any digital logic device. This tutorial will explain when and where to use pull-up . Feb 5, 2012 - Pull-up resistors and pull-down resistors are used to ensure that a wire is pulled to a high or low logical level, so that it is not floating. Electronics Tutorial about the Pull-up resistor and the Pull-down resistor that stop unused inputs from floating about randomly when there is no input. I'm talking about the ability of applications to take up more and more . The antithesis of this software bloat is software minimalism. . Moore was so minimalist in his design principles that he rejected the use of 'pull-up' resistors in his computer. Apr 11, 2016 - Microcontrollers and pull-up/pull-down resistors. Most MCU have internal pull-up resistors. On most AVRs, the value is guaranteed to be . The pull-up resistors, R1 and R2 are 1K, so that 5 mA current flows through the paddle contacts. . Program 26-1 ;Program 26-01 ;minimalist keyer ;Constants . Nov 25, 2014 - When using multiple SPI devices, a pullup resistor on the chip select lines are a really great idea. Without a pullup, devices will work great . Count it as revision on the relationship between array indexes and pointers to the . A minimalist RS232 connection (known as a null modem cable) used just 3 of the . neatly avoids many contention issues but requires 'pull-up' resistors 226. Feb 1, 2015 - These two pins have 1.8K pull-up resistors on the Pi Model B+, and I . but that's personal preference for minimalism, not necessarily rational of .