Circuits & Schematics: Wire - 2

11. One wire brings power & data to LCD module
    Benabadji Noureddine
    Circuits Microcontrollers Usage
    .. to use this LCD module with a dedicated 8-pin PICmicro and consider it as an intelligent display. Figure 1. A low-cost one wire driven LCD module for external pin-limited system. The following design will be useful for any external ...
    Nov 13, 2014

12. Control the Voltage of a Remote Load Over Any Length of Copper Wire
    Philip Karantzalis
    Circuits Supply Power Linear Technology LT6110 LT3080 LT3976
    .. A common problem in power distribution systems is loss of regulation due to the cable/wire voltage drop between the regulator and the load. Any increase in wire resistance, cable length or load current ...
    Oct 20, 2015

13. Standard Bus Buffer Easily Extends 1-Wire Signal Off Board
    Circuits Interfaces Maxim PCA9600 DS18S20
    .. Choudankar Electronic Design The 1-Wire interface is low-cost and effective, but useful only for a very short distance; by using a standard bus-buffer ...
    Feb 14, 2016
14. One wire controls LCD module
    Rex Niven
    Circuits Interfaces Microcontrollers Usage ON Semiconductor CD4538
    .. the host. Figure 1. A typical LCD module. This hardware interface Design Idea (Figure 2) reduces the connection to just one wire, allowing a basic microcontroller with limited I/O to drive a large display, either directly, through a standard ...
    May 24, 2017
15. Current source allows measuring three-wire RTD
    Circuits Measurement Supply Analog Devices AD7711A
    .. Wynne EDN In applications in which you need remote measurement of temperature with a three-wire RTD (resistance-temperature detector), it is important to eliminate the ohmic errors caused by the excitation ...
    Dec 12, 2019
16. Two-wire interface has galvanic isolation
    Circuits Maxim MAX253 MAX517 MAX845
    .. Nguyen, Maxim Integrated EDN Unlike the four-wire SPI, QSPI, and Microwire data-interface standards, I 2 C and SBBus buses require only two wires for data ...
    Feb 23, 2020
17. Single-wire keypad interface frees microcontroller-I/O pins
    Israel Schleicher
    Circuits Microcontrollers Usage Texas Instruments LMC555 LMC7211-N
    In most keypads, pressing a key closes a contact that bridges two lines in an xy matrix. If you use a microcontroller to detect a key closure, checking the states of (x+y) lines requires an equal number of I/O pins. Occupying only one free I/O pin, ...
    Jan 19, 2022
18. Two-wire, four-by-four-key keyboard interface saves power
    Stefano Salvatori
    Circuits Interfaces Microcontrollers Usage Texas Instruments MSP430F112
    .. can use a microcontroller that includes an ADC to design a two-wire-plus-ground keyboard interface. For example, you can use a resistive voltage divider to identify a pressed key ...
    May 16, 2022
19. Detect wire breaks with unusual CMOS gate circuit
    Raju Baddi
    Circuits Measurement Texas Instruments CD4050B CD4069UB CD40106B
    .. bits, and also operate in a more analog mode as shown in this Design Idea, which pinpoints the location of a break in a wire. First let’s look at the use of CMOS gates as memory devices. Figure 1 shows a one-bit transparent latch. A ...
    Jan 8, 2023
20. Hotwire thermostat: Using fine copper wire as integrated sensor and heater for temperature control
    Stephen Woodward
    Circuits Automation Analogue Design Measurement STMicroelectronics TSB712
    .. DI (see the Figure 1) follows the melded concept but takes it in a somewhat different direction by using fine gauge copper wire (e.g., 40 AWG polyurethane insulated) as an integrated temperature sensor and heater. Figure 1. Miniature ...
    Mar 4, 2024

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