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I got this idea that the servo could be used as an input device as well as an output device, so I took it apart and connected up to the potentiometer. When the servo is on, the red (center) wire has a voltage proportional to the position of the servo. Note that you only need to connect up the red wire to get this to work.
The Caltex service station at Kurmond seen in Autumn 2006. Five years later in April 2011, fuel prices are similar despite a wild ride between then and now!
Kurmond NSW Australia
Analog meters are hard to use in hardened environments. If you're showing data from digital sources, why not use a digitally-controlled analog meter?
laser cut acrylic meter face & needle, tiny 25mmx12mm $3 servo, and arduino. Nothing else. No motor shield or other motor driver. The Arduino will drive several small servos just fine.
face size: 30mm x 32mm
(could also use a glued-down wire as the needle instead of acrylic hoop pointer)
A broken servo is an excellent oportunity to try PID with Arduino.
The servo controller is broken, but the motor and the encoder are fine.
Motor: Red (+), Black (-)
Encoder: Yellow (+), Green (-), Blue (=).
Fischertechnik FPGA flow for the servo.
This flow shows how the servo motors are controlled. The left part come from the FPGA module, the right part is the servo pcb hardware. The signals are multiplexed. A servo pulse is max 2400 usec wide and a repeat every 20 msec. The FPGA gives 8 lines parallel out per time slot of 2400 usec. The maximum number of servo motors is 8x8 = 64. Now there are 32 servo outputs connected. The other 32 outputs are free to use. These may also be LEDs. Each output signal is 5V level with a 330 ohm resistor in series.
Within each time slot, 100 usec remains available. It is used to extract the following data from the dual ported ram into the FPGA. This dpram has all the possible positions of each servo. The mode information of the DPRAM determined what position should be taken. This information is also used to control the NeoPixel color leds. This is not shown here on the drawing.
Each servo has 4 possible positions in the dpram. Those values can be set or trimmed by the user. The LCD display shows the 4 pwm pulse widths of each servo motor. Additionally, the color of the NeoPixel LED can be selected and adjusted, so the color of the led is changed with the position of the servo motor.
Two of the ............Red Arrows turning finals to land at Dunsfold................
BUT, wait a moment .....hang on......surely that smoke looks all ......well unusual...............
You also want a nice capacitor near the power supply for the servo, otherwise when it turns on it might cause the board to reset.
This is a prototype RFID internet controlled access system for TechShop. It uses an Arduino with Ethernet shield, and a Seeeduino and servo for automated testing.
General Store and Servo at Sofala. Closed and in decay.
With its interesting lacework and its weatherboard construction the General Store in Denison Street is one of the town's most notable buildings. It was built in the 1860s to meet the needs of the local miners.
This old building was featured in the famous painting "Sofala" by the Australian artist Russell Drysdale. It now hangs in the Art Gallery of NSW.
collection.artgallery.nsw.gov.au/collection/results.do?vi...
walkabout.com.au/locations/NSWSofala.shtml
One of my Sofala Series.
Still Life.
Joint parts printed in Shapeways, ball bearing inserted (lots of ball bearings in every joint), servos, brackets.. stuff.
Mini Servo Sectionboard Power Box for gas plane with 20A UBEC
Mini Servo Sectionboard Power Box for gas plane with 20A UBEC
There are many question about "how to use Mini Servo Sectionboard Power Box for gas plane with 20A UBEC?” they are all pointed out this www.sdshobby.net/mini-servo-sectionboard-power-box-for-ga... is this Mini Servo Sectionboard Power Box? And why is it so hot?
This Mini Power Box Pro is mainly used for the servo with large regular vane’s airplane, such as gasoline engine. This product can distribute several strings’ power. The section board integrates CDI remote flameout switches and reserves position for receiver, which make servo’s lines convenient and tidiness. If you use double powers input to the power supply, it will be more stable and more security.
Produce features:
1. Eight channels for input, and sixteen channels for output.(every one channel input with two channels output )
2. Integrates CDI remote flameout switches. Through each channel of the remote controller or switch channel (usually choose a switch channel) can make the gasoline engine’s CDI on or off by remote control.
3. Independent CDI power supply socket. Receiver power completely separates with the CDI power, so you should not worry about that CDI arouses high frequency signal will interfere the receiver, and the LED display the state of the power supply at real time.
4. LED display the state of the electric voltage at real time, and LED can display in two colors.
5. Five LED point out the distribution board's working status in real time.
6. The steering engine uses a step-down supply by switching style. The working current is 0-20A, but it can up to 30A and working for 3 seconds.
7. The distribution board supplies the steering engine's working voltage is between 4.8V to 9.7V (factory voltage is 5.2V).
8. Integrated electronic switch and a traditional mechanical switch which can make higher security and working stability.
9. The receiver uses a linear 5V to supply power.
Technology Parameters:
1.Working voltage :7-13V
2.Steering current voltage :0-20A,4.8-9 .7 V (factory voltage is 5.2V)
3.Weight:80g
4.Volume:116mm(long)*88mm(wide)*13mm(height)
5.Working temperature:-20℃ to 85℃.
You may catch a concept of how to use this mini power box.but if there come a video show then you can learn to operate this mini power box better.Yes,this time,Good news from sdshobby's channel.A very clear video show of how to use this mini power box has come out today.
Watch video click link: http://v.youku.com/v_show/id_XMzY1MTQ4MjI0.html
I sacrificed a 2x2 round brick to be able to connect a servo motor to either a brick or Technic axle. After shaving it down with a pocket knife, I hot glued it to a servo mount. Yeah, I feel kinda bad for absolutely shrecking a Lego piece, but it's in the name of science.