Short Circuits

SENSOR ARRAY

make sense of your environment

Learn About:

As the name suggests, the SENSOR ARRAY is an array of sensors. We have the DHT11 which has both Thermometer and Relative Humidity sensors which are read through a single data line. A Mic with a basic LM386 Amplifier Circuit which can be read by the MOTHERBOARDS Analog pins. A Light Dependent Resistor which is also read by an Analog pin. And to record all the data that these sensors pick up, a Micro SD Card slot. You can upload the data to a spreadsheet and make graphs to help understand things like the brightest time of the day, or the hottest, loudest, most humid etc. 

Learn About:

  • Sound Amplification 
  • Sound detection and recording using a Microcontroller
  • Light Intensity detection
  • Reading and using data with a Microcontroller’s analog pin
  • Reading a DHT11 Sensor
  • Using SD Cards with Microcontrollers
  • 3.3V to 5V Logic Level Conversion
  • Bypass Capacitors
 

Required
Tools:

  • Powered through Terminal Blocks
  • All Through-Hole Components
  • Through-Hole Test Points at key points in the circuit
  • Designed to be easy to follow and understand
  • DHT11 or upgradeable to DHT22
  • Thermometer (0-50ºC at ±2ºC accuracy)
  • Relative Humidity (20-90% at ±5%RH)
  • Electret Microphone 
  • Microphone Gain adjustment through Potentiometer
  • LM386 and basic amplifier circuitry
  • Light Dependent Resistor for reading light intensity
  • Micro SD Card slot with Bypass Capacitor
  • 3.3V to 5V Logic Level Converter to enable the MOTHERBOARD to understand the SD card’s 3.3V logic
  • Multiple IO ports for neater wiring to other boards
  • 40+ page manual with every part of the circuit and every component explained in an easy to follow way
  • Height and Width: 100mm x 100mm
  • Stacks/Panels with other Short Circuit Boards
  • Clearly printed traces to aid understanding of the circuit and to help with fault finding
  • Back of board is printed with the circuit so you can see every trace, even when the components are soldered on. This makes it easier to understand and to fault find

Learn
About:

Manual

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Quick Reference

  • SENSOR ARRAY
  • DHT11
  • LM386
  • Micro SD
SENSOR ARRAY Specs: 
 
  • Overcurrent protection (Vin) 500mA (via MOTHERBOARD Vout)
  • Overvoltage Protection 5.1V (via MOTHERBOARD Vout)
  • DHT11 or upgradeable to DHT22
  • Thermometer (0-50ºC at ±2ºC accuracy)
  • Relative Humidity (20-90% at ±5%RH)
  • Electret Microphone 
  • Microphone Gain adjustment through Potentiometer
  • LM386 and basic amplifier circuitry
  • Light Dependent Resistor for reading light intensity
  • Micro SD Card slot with Bypass Capacitor
  • 3.3V to 5V Logic Level Converter
  • Multiple IO ports for neater wiring to other boards
  • 100mm x 100mm x 1.6mm
  • 2 layer board
  • Gold coated contacts (ENIG)
SENSOR ARRAY Specs: 
 
  • Overcurrent protection (Vin) 500mA (via MOTHERBOARD Vout)
  • Overvoltage Protection 5.1V (via MOTHERBOARD Vout)
  • DHT11 or upgradeable to DHT22
  • Thermometer (0-50ºC at ±2ºC accuracy)
  • Relative Humidity (20-90% at ±5%RH)
  • Electret Microphone 
  • Microphone Gain adjustment through Potentiometer
  • LM386 and basic amplifier circuitry
  • Light Dependent Resistor for reading light intensity
  • Micro SD Card slot with Bypass Capacitor
  • 3.3V to 5V Logic Level Converter
  • Multiple IO ports for neater wiring to other boards
  • 100mm x 100mm x 1.6mm
  • 2 layer board
  • Gold coated contacts (ENIG)
DHT11 Specs:                                                              
 
  • Power Supply: 3-5.5V 
  • Current Supply: 100-150µA (Standby), 0.5-2.5mA (Measuring), 0.2-1mA (Average)
  • Thermometer Range: 0-50ºC at ±2ºC accuracy
  • Relative Humidity Range: 20-90% at ±5%RH accuracy
  • 4 pins (1 Not Connected)
  • Single Data Line 
  • 1 Second Minimum Sampling Period

DATASHEET

 
 
 
DHT11 Specs:                                                              
  • Power Supply: 3-5.5V 
  • Current Supply: 100-150µA (Standby), 0.5-2.5mA (Measuring), 0.2-1mA (Average)
  • Thermometer Range: 0-50ºC at ±2ºC accuracy
  • Relative Humidity Range: 20-90% at ±5%RH accuracy
  • 4 pins (1 Not Connected)
  • Single Data Line 
  • 1 Second Minimum Sampling Period

DATASHEET

 
 
 
LM386 (Low Voltage Audio Power Amplifier) Specs:                                                              
  • Wide Supply Voltage Range: 4V – 12V
  • Quiescent Current Drain: 4mA
  • Quiescent Power Drain: 24mW
  • Voltage Gains from 20 to 200
  • Ground Referenced Input
  • Self-Centering Output Quiescent Voltage
  • Low Distortion: ~0.2%

DATASHEET

 
 
LM386 (Low Voltage Audio Power Amplifier) Specs:                                                              
  • Wide Supply Voltage Range: 4V – 12V
  • Quiescent Current Drain: 4mA
  • Quiescent Power Drain: 24mW
  • Voltage Gains from 20 to 200
  • Ground Referenced Input
  • Self-Centering Output Quiescent Voltage
  • Low Distortion: ~0.2%

DATASHEET

 
 
Micro SD Card Slot Specs:

  • Push to Insert, Push Again to Eject
  • Serial Interface
  • Read and Write to Micro SD Cards
  • Fits any Micro SD Card

DATASHEET

 
 

 

Micro SD Card Slot Specs:

  • Push to Insert, Push Again to Eject
  • Serial Interface
  • Read and Write to Micro SD Cards
  • Fits any Micro SD Card

DATASHEET

 
 

 

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