SigOS: Hardware: Difference between revisions
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| Line 18: | Line 18: | ||
** Wire color: Yellow | ** Wire color: Yellow | ||
** Function: +3.3 volt power | ** Function: +3.3 volt power | ||
* Part number: GL5516 | |||
* Characteristics: Bright light 5-10k Ohms, dark 0.2M Ohms | |||
* Source: [https://www.amazon.com/dp/B0BDFLPTFB?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 <i>Amazon.com</i>] | |||
Revision as of 18:16, 5 December 2024
The Signal Operating System is designed to operate on low-cost hardware. This encourages extensive use for Signals and Detectors throughout most railroads, large and small.
Components
Control Board
CdS photoresistor
A CdS photoresistor is a light-sensitive resistor. It detects the ambient light at the signal head, which SigOS uses to control the brightness of the WS281 LEDs.
- Pin 1
- Either wire from CdS photoresistor
- Wire color: Green
- Function: Control voltage into GPIO P1 of Control Board A/D converter
- Pin 2
- Other wire from CdS photoresistor
- Wire color: Yellow
- Function: +3.3 volt power
- Part number: GL5516
- Characteristics: Bright light 5-10k Ohms, dark 0.2M Ohms
- Source: Amazon.com