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Servo Pulse to Dual H-Bridge - interface performs vital control functions needed for propulsion and steering of a fighting robot __ Designed by Bob Blick
SIMD1 / Solar Regulator - The SiMD1 / Solar Regulator supplies a constant 2V after triggering and permits driving LEDs with constant brightness without the need for current limiting resistors. __ Designed by Wifl Rigter
SIMD1 V0 - Nocturnal-Controlled Solar Engine: The original SiMD1, the V0 does its magic with just a resistor and a Germanium diode. __ Designed by Wilf Rigter
SIMD1 V1 - Nocturnal-Controlled Solar Engine: The V1 is just like the V0, but with polarities reversed. __ Designed by Wilf Rigter
SIMD1 V1-Nocturnal Solar Engine - The V1 is just like the V0, but with polarities reversed. SiMD1 V1 is functionally the same circuit as SiMD1 V0 but provides an active high signal to the load when night (or at least darkness) has arrived. As with the SiMD1 V0, a 100K - 1M resistor across the solar cell helps with turnoff, but the SiMD1 V1 requires almost complete darkness before switching __ Designed by Wifl Rigter
SIMD1 V2 - Nocturnal-Controlled Solar Engine: The V2 has two flavors, essentially modifications of the V0 and V1, but with a transistor and resistor replacing the diode. This variant turns on earlier (i. e. , before it's so dark) and "cleaner" than the V0 and V1. __ Designed by Wilf Rigter
SIMD1 V3 - Nocturnal-Controlled Solar Engine: The V3 is very similar to the NPN flavor of the V2, but with the addition of a FET on the output line. This makes life easier for its attached load. __ Designed by Wilf Rigter
SIMD1 V3-Nocturnal Solar Engine - The V3 is very similar to the NPN flavor of the V2, but with the addition of a FET on the output line. This makes life easier for its attached load. __ Designed by Wifl Rigter
SIMD1/Solar Regulator - Nocturnal-Controlled Solar Engine: The SiMD1 / Solar Regulator supplies a constant 2V after triggering and permits driving LEDs with constant brightness without the need for current limiting resistors. __ Designed by Wilf Rigter
Simple Circuit effective whisker bumper - We all have need of that last line of defense when the SONAR glitches, the iRPD doesn't and our bot is on a collision course with a table leg. That last defense against re-kitting is a bumper. I have__
Simple Circuit SSC - A Serial Servo Controller using a 16F84 PIC (discussion). __ Designed by DC Reagan
Simple Circuit Stepper Motor Controller - The circuit shown above can be used to control a unipolar stepper motor which has FOUR coils (i’ve swiped it off an old fax machine). The above circuit can be for a motor current of up to about 500mA per winding with suitable heat sinks for the SL100. For higher currents power transistors like 2N3055 can be used as darlington pair along with SL100. The diodes are used to protect the transistor from transients.__
Six-transistor H-bridge - This is the six transistor "Tilden style" H-bridge; while not as old as the original "basic H-bridge, " this goes "way back, " and is the basis for many BEAM driver circuits __ Designed by Wilf Rigter
Skinny-PWM/PID - A PWM/PiD example in the making. Uses PicBasic Pro. __ Designed by DC Reagan
SmartCap - Bob Shannon's solar engine design, using a phototransistor and PNP transistor. Originally designed the SmartCap solar engine for a specific purpose -- to provide a "burst" of energy to a 'bot right after its source of light goes away. The idea was to introduce a specific behavior -- when things got dark for the 'bot, it would have the energy to notice and scurry toward the next spot of bright light. __ Designed by Bob Shannon
SmartCap solar engine - Bob Shannon originally designed the SmartCap solar engine for a specific purpose -to provide a "burst" of energy to a 'bot right after its source of light goes away. The idea was to introduce a specific behavior -when things got dark for the 'bot, it would have the energy to notice and scurry toward the next spot of bright light. __ Designed by Wilf Rigter
Soccer Robot - This soccer robot can move forward, reverse, forward-left, forward-right, reverse-left and reverse-right with the help of an Android phone. The speed of its movement is controlled by the angle of rotation...__ Electronics Projects for You
Solar cell simulators - Mighty useful in testing and designing your 'bots. The 78L12 provides the regulated voltage required at the input of the solar cell simulator. it limits the voltage to 12V and the current to about 100ma. A 15V-24V unregulated voltage is used as the input to the 78L12. Any other regulated 9V-12V source can be used. __ Designed by Wilf Rigter
Solar Charge Controller - Find out more about Solar Charge Controllers. __ Designed by REUK-Renewable Energy UK website
Solar engine solarbotICs - Nocturnal-Controlled Solar Engine: The D1 solar engine is the original nocturnal solar engine design. The design is simple, tuneable, but no longer terribly useful (I include it here just for purposes of education and folks' historical interest). __ Designed by Wilf Rigter
Solar Engine that is MicroPower - Voltage-Controlled Solar Engine: Ken Huntington's fairly complex, but very efficient "micropower" solar engine design. No 1381s or ICs needed. __ Designed by Ken Huntington
Solar Revolver - A single-chip solarroller circuit with reverse and turning capability; based on a 1381 SE. __ Designed by Wifl Rigter
Sonic Output Indicator - in a 2003 Yahoo BEAM list post, Tom Grey presented his sonic output indicator (intended as a replacement for an LED as a process state indicator) : __ Designed by Tom Grey
Sound finding cricket - is it possible with a minimum of electronics to produce a robot able to find a pulsing sound-source? __ Designed by Boulette's Robotics page
Sound finding cricket with phase Detector - This will be anopen growing web-page for our most recent project: an improvement to the cricket. The new sensor to design should be able to. __ Designed by Boulette's Robotics page
Speed Controller for Robot - The purpose of a motor speed controller is to take a signal representing the demanded speed, and to drive a motor at that speed. The controller may or may not actually measure the speed of the motor. if it does, it is called a Feedback Speed Controller or Closed Loop Speed Controller, if not it is called an Open Loop Speed Controller. Feedback speed control is better, but more complicated, and may not be required for a simple robot design __ Designed by Paul Hill
Stella, the "daughter of cheap1" (see above). - An inexpensive robot (but not cheap) built to be a follow on for the cheap1. Pictures, and a short description __ Designed by DC Reagan
Stepper Motor Controller - The circuit shown above can be used to control a unipolar stepper motor which has FOUR coils (i’ve swiped it off an old fax machine). The above circuit can be for a motor current of up to about 500mA per winding with suitable heat sinks for the SL100. For higher currents power transistors like 2N3055 can be used as darlington pair along with SL100. The diodes are used to protect the transistor from transients.__
SunEater V - This photovore is based on SunEater_iV and uses a single 74HC14 to do all his "thinking. " Two "tiny pager motors" (found here) provide the muscle. Together with the SMT components, they allow SunEater_V to fit in a 3.5cm x 2.7cm x 2.5cm block, with just his wheels and feelers sticking out. He weighs less than 14 grams. __ Contact infosbolt @ xs4all.nl
Super Simple Circuit Stepper Motor Controller - The circuit shown above can be used to control a unipolar stepper motor which has FOUR coils (i’ve swiped it off an old fax machine). The above circuit can be for a motor current of up to about 500mA per winding with suitable heat sinks for the SL100. For higher currents power transistors like 2N3055 can be used as darlington pair along with SL100. The diodes are used to protect the transistor from transients.__
Sweet! the Line-following Robot - An m&m's candy container provides a fun body for a smart line-following robot. Videos show the auto-contrast, dark-or-light detection capabilities. Sharp turns and crossovers don't slow this car down, but it can automatically stop at the end of the line. __ Contact David Cook
Switching regulator drives robot Motor - 05/13/99 EDN Design Ideas: The circuit in Figure 1 shows an example of how you can use an integrated switching regulator (iSR] to efficiently vary the speed of a permanent-magnet dc motor. in this application, the rotating head of a robot senses the presence of an oncoming object (perhaps a human]. if the robot senses an object, it slows the rotation PDF contains many circuits, scroll to find this one. Design by Donald Comiskey, Power Trends Inc, Warrenville, IL
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