The prototype circuit board used an external LCD display that received commands via an RS-232 interface. Although it worked well programming it was cumbersome. For this reason the circuit board was revised so that it would support a directly attached LCD display. This view of the back of the board shows the LCD connector more clearly. It also show
Click here to download the full size of the above Circuit.
s the amount of rewiring that was necessary to repurpose the circuit board which was designed for another project. The plug in the lower right goes to the 6 pin stepper motor cable. The USB plug at the left goes to the Canon camera`s USB connection via the connecting cable that came with the camera. Pressing 1 on the TV remote starts shooting, 2 allows you to adjust the position of the camera and 3 lets you change variable values. Note the that variables are shown in line 4: d=Degrees, s=Steps, p=Pause before / after shot and c=0 for clockwise and c=1 for counterclockwise. The setting screen allows you to change the variables in the program. Pressing 1 allows you to enter a 4 digit number of degrees X 10. That means to enter 0450 for 45 degrees or 0225 for 22. 5 degrees. The Shoot delay is the pause time before and after a shot is taken. It allows any motion of the tripod to settle and also allows for time exposures. It is a 2 digit number in seconds. If you enter 10 the system will pause for 1/2 of the time (5 seconds) before shooting and an additional 5 seconds after shooting. `9-12-2008 version 3-5 - WORKS `on green speedo board with H-bridge `works properly with 6 wire stepper (old hard drive ) `working well with Hurst motor - 3600 steps per revolution rather than ` advertised 14400 - four steps per pulse, I would guess ` needs pause in "step 1" routine to develop proper torque INCLUDE "modedefs. bas" cmcon=7 `allows...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
characters left: