Micro Servo

John Phillips

This is a super-small, very inexpensive, micro servo with around 180 degrees of rotation. It is an OUTPUT device It draws very little current (around 100mA) when demonstrating servo control or operating under a very light load – like driving a hand around a clock face. In these light load situations it can be safely connected directly to an output …

Crash Sensor

John Phillips

This is a sensor module containing a microswitch that is always ON. When the operating arm of the microswitch is depressed (eg, by coming into contact with an obstacle) it turns OFF It is an INPUT device. How does it work? The secret of a microswitch is that a metal common contact is moved at high speed between two other …

Passive Infrared Motion Detector (PIR)

John Phillips

This is a standard passive infrared (PIR) motion detector from DFRobot (SEN0018) which looks for heat sources within its detecting angle. When it detects a new heat source it sends an alarm signal back to the Kookaberry. Although the sensing element is analogue, this sensor is classified as a digital sensor because its output (an alarm signal) is digital. Motion …

Servo: 9g 180° Micro Servo (1.6kg)

John Phillips

This DF Robot micro servo weighs only 9 grams and provides 1.6kg.cm of torque. It can rotate approximately 180 degrees (90 degrees in either direction). Although designed for a supply voltage of 5v, it operates perfectly well off the 3.3V Kookaberry supply; but at reduced torque and current.  Connecting this servo directly to the Kookaberry when running the Analogue app …

Push Button

John Phillips

This is a DF Robot Push Button. It is used to make or break an electrical circuit. FEATURES Wide voltage range from 3.3V to 5V Standard assembling structure (two 3mm diameter holes with multiple of 5mm as distance from center) High quality connector Immersion gold surface SPECIFICATION Supply Voltage: 3.3V to 5V Indicator LED on board Large button keypad and …

Rotation Potentiometer

John Phillips

A rotation potentiometer, often referred to as a “pot”, is an analogue input device that, when used as a voltage divider, varies the voltage from a source by rotating a knob. When used with the Kookaberry, it varies the voltage continuously (therefore it is an analogue signal) at an input connector in the range 0-3.3 volts in one complete 300 …