View allAll Photos Tagged pwm
int ledPin = 13; // LED connected to digital pin 13int h=1;
int h = 1;
int h2=0;
int h3=0;
int h4=0;
int h5=0;
int h6=0; // direction memory motor 1
int h7=0; // direction memory motor 2
void setup() // run once, when the sketch starts
{
pinMode(4, OUTPUT); // pwm motor 1
pinMode(6, OUTPUT); // pwm motor 2
pinMode(5, OUTPUT); // direction motor 1
pinMode(7, OUTPUT); // direction motor 2
pinMode(13, OUTPUT); // PWM INDICATOR LED
pinMode(2, INPUT); // direction motor 1 - input test switch
pinMode(3, INPUT); // direction motor 2 - input test switch
digitalWrite(4, LOW); // motor 1 off
digitalWrite(6, LOW); // motor 2 off
digitalWrite(5, LOW); // motor 1 direction L - low
digitalWrite(7, LOW); // motor 2 direction L - low
}
void loop() // run over and over again
{
h5 = digitalRead(2); // motor 1 direction
if (h5!=h6)
{
h6=h5;
digitalWrite(4, LOW); // motor 1 pwm low - stop
delay(1000);
digitalWrite(5, h5); //
delay(1000);
}
h5 = digitalRead(3); // motor 2 direction
if (h5!=h7)
{
h7=h5;
digitalWrite(6, LOW); // motor 2 pwm low - stop
delay(1000);
digitalWrite(7, h5); //
delay(1000);
}
digitalWrite(4, HIGH); // motor 1 2 pwm high
digitalWrite(6, HIGH); //
digitalWrite(13, HIGH); //
h5 = analogRead(0); // read the value from the sensor
while(h5>0){
h2 = analogRead(0); // read the value from the sensor
while(h2>0){
h2--;
}
h5--;
}
digitalWrite(4, LOW); // motor 1 2 pwm low
digitalWrite(6, LOW); //
digitalWrite(13, LOW); //
h4 = analogRead(1)*2; // read the value from the sensor
while(h4>0){
h3 = analogRead(1); // read the value from the sensor
while(h3>0){
h3--;
}
h4--;
}
}
PWM through a capacitor has the same frequency and average voltage, but is closer to a constant analog voltage.
A Ruston & Hornsby diesel electric in permanent way service at Taunton. Built at Lincoln in 1959 she was scrapped in 1990. British rail purchased five of these locomotives for permanent way service, their single traction motor could be disengaged for towing, which allowed them to be towed at higher speeds in trains to work sites.
Puente-H con transistores NPN y PNP, controlado por PWM generado por un 555. Los transistores pueden ser TIP u otro tipo, según la potencia necesitada para el motor.
Más información en:
Gracias a todos por vuestros comentarios y reconocimientos...
Por favor, no use esta imagen en los sitios web, blogs u otros medios de comunicación sin mi permiso explícito - Todos los derechos reservados ©.
Please don't use this image on websites, blogs or other media without my explicit permission - All Rights Reserved ©.
First successful test of an improvement to the PWM synthesis code that allows user-defined envelope shapes. This one is a computed exponential decay, similar to a stringed instrument being plucked. The resolution is only 8 bits, but the result looks OK.
PWM at Mangalore Airport in Victoria. At the 1983 SAAA Fly In and airshow during the Easter Weekend. We flew down from Sydney for the day on Easter Sunday, 4 hours each way, on this wonderful old girl.
For a comprehensive history of this aircraft click here .
44ks audio output at 9.5 bits resolution... Quality seems to be limited by static on the input ADC pins for now.
A Ruston & Hornsby diesel electric in permanent way service at Taunton. Built at Lincoln in 1959 she was scrapped in 1990. British rail purchased five of these locomotives for permanent way service, their single traction motor could be disengaged for towing, which allowed them to be towed at higher speeds in trains to work sites.
Camera: SONY A6000
Panorama Y Axis: 3 Images
Panorama X Axis: 5 Images
ISO: 100
Shutter Speed: 1/3"
Light Source: Internal Lamp
DIC: Yes
Microscope Objective: 10X
Stitching Software: PTGui
Other Software: Photoshop for hot-pixel removal. GIMP for cropping and scaling.
The 8 pins PIC12F683 microcontroller is one of the smallest members of the Microchip 8-bit microcontroller families but equipped with powerful peripherals such as ADC and PWM capabilities. This make this tiny microcontroller is suitable for controlling the DC motor speed. In order to demonstrate the PIC12F683 capabilities and to make this tutorial more attractive, I decided to use the PIC12F683 microcontroller to generate simple and yet fascinating laser light show from a cheap keychain laser pointer. For more information please visit www.ermicro.com/blog/?p=1622
A pair of class 08 shunters and a PWM machine stand at Gloucester Horton Road depot in the mid 1980s.
Another of those PWM thingummys snapped from a passing train. This is at Taunton which must make it PWM652.
RC servo pulse to DC motor speed converter based on a PIC12F629 for the Mobile Platform.
This was the logic half of the inspiration / prototype for the RCDC.
1978 MGB GT.
H&H classic car auction, Buxton -
"Chassis No: GHD5474634G
26,710 miles from new and just 4 previous keepers
Offered with a collection of old MOT's, handbook and spare key
Fitted with stainless steel exhaust, electronic ignition and MOT'd into July 2019
Vendor Condition Ratings:
Bodywork: 'Very Good'
Engine: 'Very Good'
Electrical Equipment: 'Very Good'
Paintwork: 'Very Good'
Gearbox: 'Very Good'
Interior Trim: 'Very Good'."
Sold for £4275 on an estimate of £4000 - £4500.
Portland Jetport might want for a huge variety and size of subjects but what is there is easy to photograph through the fence from the viewing area and the sun is good almost all day.
Xung PWM là cụm từ viết tắt của Pulse Width Modulation, giải nghĩa hiểu đơn giản thì xung PWM là một loại tín hiệu được ứng dụng trong vật lý để điều chỉnh điện áp tải ra của các thiết bị điện tử, thiết bị điện dựa trên sự thay đổi về độ rộng của chuỗi xung vuông, điều này dẫn đến sự thay đổi điện áp ra.
Các PWM khi biến đổi sẽ có cùng 1 tần số và khác nhau về độ rộng của sườn dương hay sườn âm.
👉Tham khảo thêm bài viết sau đây để rõ hơn.
shadow.vn/pwm-la-gi-va-anh-huong-den-den-pin-nhu-the-nao
SHADOW Việt Nam - Chuyên cung cấp đèn pin cao cấp, đèn pin nhập khẩu chính hãng
Add: Số 51A Phan Kế Bính, phường Cống Vị, quận Ba Đình, Hà Nội
SĐT: 0934883366
TIN: 0108618521
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Các trang mạng xã hội khác của Shadow Việt Nam:
dribbble.com/shots/19683553-Xung-PWM-l-g-r-ng-xung-nh-h-n...
linkhay.com/blog/390918/xung-pwm-la-gi-do-rong-xung-anh-h...
Foto para la 19 Gymkana de Canonistas. Tema: Vértigo.
Gracias a todos por vuestros comentarios y reconocimientos...
Por favor, no use esta imagen en los sitios web, blogs u otros medios de comunicación sin mi permiso explícito - Todos los derechos reservados ©.
Please don't use this image on websites, blogs or other media without my explicit permission - All Rights Reserved ©.
Islanda (riabilitazione e vita attiva)
PwMS of MS Felag Islands Center doing rehabilitation and therapy exercises Every morning around 30 patiences of MS arrive to the center and remain till afternoon doing different activities.
PWM 3962 a powered Wickham at Furnace Sidings, Pontypool & Blaenavon Railway. Works No. 6947/1955 it was powered by a 4 cylinder 1150cc Ford SV engine.
Top: 4 CFL tubes, one not visible on the left side. The long ones consume 14W, the short ones 8W.
The single LED bar in the bottom half takes 3W. Judging from the brightness of the thing and the brightness of the rear wall, I think I could get the same overall illumination with about 6 LED modules, equaling in 18W + power supply losses. But good switchers are quite efficient. This would be a 15V system.
I'm still waiting for a batch of individual 0.5W LEDs in warm/cold white. They'll get a chance to show off as well. If they win the race, I'll be able to use a spare 5V, 2.6A switching power supply for these for the beginning. I've checked it for its stand by power requirements and they were a bit high. 1W standby losses would cost me about 6€ per year. Efficient switchers with low standby losses can be had for 12 to 20€. I've already got one (5-12V, 2.25A) and my power monitor couldn't detect any difference whether it was plugged in or not.