Circuit Lake » Measurement

Weasure, Smart Weight and Dimension Meter

admin — Thu, 22 Dec 2011 00:40:43 +0000

Weasure is M16C/62P-based system that can weigh and measure packages for shipment. Simply place the package on it and both the weight and dimensions are instantly displayed on LCD. If user connects the device to a PC’s serial port using RS232, then the data is uploaded directly to the PC, where a shipping application [...]

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Rechargeable Battery Capacity Tester

admin — Mon, 24 Oct 2011 03:12:53 +0000

This ATMega168-based battery tester allows you to find out the overall capacity of the rechargeable battery. It can shows how long will a battery last from the time it’s fully charged to the time that the “low battery” indicator comes on your device. It can be used to test multiple cells individually, and display the [...]

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Electric Smoker Temperature Controller

admin — Sat, 22 Oct 2011 02:15:54 +0000

Smoke-O-Tron is PID controller for electric smoker temperature developed based on PICAXE microcontroller. The controller can handle the 1500W heater to within about 3 degrees F. It will measure temperature in the space and switching the heater on and off at a given speed.User can easily adjust temperature setting through rotary encoder for user [...]

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Digital Caliper with RS232 Interface

admin — Wed, 28 Sep 2011 02:58:57 +0000

This project shows you how to connect inexpensive calipers, micrometers and height gauges to PC through serial RS-232 interface and see the result using PC software. Its main part consists of minimal PIC to RS-232 interface, +5V/-1.5V power from serial port, and 1.5V to 5V logic level conversion. “The connector on the measuring instrument will [...]

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Laser Position Sensor

admin — Fri, 23 Sep 2011 05:11:21 +0000

The Laser Position Sensor (LPS) module is an optical sensor that measures and provides the two-dimensional coordinates of visible red laser light (630-694nm) shined onto its surface. This Freescale MC9S08JM8CLC MCU-based project developed by Joe Grand based on Roger Johnson and Chris Lentz’s 2-D Optical Position Sensor.The Laser Position Sensor has a resolution of 0.0001″, [...]

Laser Range Finder

admin — Wed, 21 Sep 2011 05:01:08 +0000

This Laser Range Finder (LRF) is a low-cost distance measuring instrument that uses laser technology to calculate the distance to a targeted object. It can measure up to 8 feet away but for optimal measurement the range is about 6 inches to 4 feet. The project is designed by Joe Grand.The main parts of Laser [...]

PIC Paintball / Ballistic Chronograph

admin — Mon, 05 Sep 2011 02:54:13 +0000

The project shows you how to build ballistic chronograph based on PIC18F13K50 Microcontroller. The project only been tested with a paintball gun and it is relatively simple to make. It also can record the rate of fire at which a device is firing. The operation of this projectile velocity meter is rather simple, there are [...]

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