Home

25-key multi-function keyboard circuit

Related posts

Free Electronic ProjectsElectronic hobby projects, Electronic circuit, Circuits, Hobby circuits, Digital circuits, digital e...Digital clock circuitOne , designed to 1 . familiar with the IC 's pin arrangement . 2 . to acquire all the chip logic fu...Serial Interface Keyboard Controller circuitSK5278Abstract : SK5278 is a managed 16 key keyboard controller , the device has to shake the internal pro...IPM drive and protection circuitp> Abstract: This paper introduces the basic operating characteristics of the IPM and the IPM...Inverter circuit board and maintenanceA common style car on the market the main indicators of inverter products Input voltage: DC 10V ~...Power supply switching protection circuitAbstract: In order to switch to emergency power failure in the harsh environment and safe conditions...Quick Introduction to Voice Trilogy Integrated CircuitsBasics Young enthusiasts started his electronic technology, we might start with the most innovati...LM567 Universal tone decoder integrated circuit applications567 for the general tone decoder, when the input signal in the pass band to provide saturated transi...DC motor control circuit-4Commutator permanent magnet DC motor, is a very broad application. Just add the appropriate voltage ...Relay control circuit module and the principleCan directly promote the work of the CMOS integrated block circuit relay Circuit in the electroni...Miniature DC Motor Drive Test Analysis circuit1 Introduction DC motor is the first invention can convert electrical energy into mechanic...Simple short circuit tester coilsUsing the 555 integrated timer. Add a small amount of external components, can be made simple and pr...Optocoupler drive circuitFirst, the circuit using optocoupler Why? Electrical isolation requirements. Between A and B circ...Multi-function smart phone socket control circuit (a)I. Features The nearest control, remote query function, remote on / off function, remote c...Cable duplex intercom circuit Figure 1 is a fan-made electronic cable for duplex intercom (intercom wired telephone can be...Multi-functional Sensor signal conditioner circuit with cold junction compensation thermocouple circuit AD693Sensor signal conditioner from the multi-functional form 0 ~ +30 mV AD693 unipolar input, 4 ~ 20mA o...Serial interfacing circuit with S by R circuit and dual-axis magnetic field sensor application circuit (integrated magnetic sensor HMC1002)Application of dual-axis magnetic field sensor circuit as shown. Using a two-axis magnetic sensor HM...Sensor signal conditioner circuit with multi-functional 0 to +30 mV AD693 unipolar input-4 to 20mA output circuit The circuit components are used:AD693 Constituted by the AD693 unipolar 0 ~ +30 mV...Sensor signal conditioner circuit with multi-functional 0 to +30 mV AD693 unipolar input-4 to 20mA output circuit The circuit components are used AD693 Constituted by the AD693 unipolar ...Ultrasonic transmitter - receiver circuits40kHZ ultrasonic transmitter circuit (1) 40kHZ one ultrasonic transmitter circuit, the F1 ~ F3 thr...