CircuitGizmos

Electronic Products for Creative Minds

  • Home
  • Gizmo Store/Products
  • Documentation/Datasheets
  • Projects/Libraries
  • GizmoBlog
  • Services/Contact
    • Design
    • Contact Gizmo!
  • Your Gizmo Cart
    • Your Account
You are here: Home / Projects / MicroBoard MicroMite Projects / CGMICROBOARD DS2413 1-wire, Two Ports

CGMICROBOARD DS2413 1-wire, Two Ports

The Dallas/Maxim DS2413 is a 1-wire device that has two I/O ports for input or open-drain output. You can use the 1-wire commands of MMbasic and a selected device pin to control a number of 1-wire devices, adding a DS2413 to a CGMICROBOARD2 (in this case) lets you expand that single pin to two per DS2413 added.

This project connects a DS2413 to pin 17 of a CGMICROBOARD2. Two LEDs are connected to the ports of the DS2413. An LCD with touch screen shows the LED status, as well as the graphic button control.

Black jumper wires connect ground to the solderless breadboard. The red jumper wire connects 3.3V to the breadboard.

The white jumper wire connects uM17 to the data connection of the DS2413 and is also pulled up to 3.3V through a 10k resistor.

The ports of the DS2413, when set to outputs, are open-drain. The LEDs are connected on one side to a resistor to 3.3V and on the other end to the output port of the DS2413. When turned on the DS2413 output acts as a switch to ground, illuminating the LED.

Above you can see that the code running on the CGMICROBOARD2 creates two LED controls and two BUTTONS. The green LED is enabled. Both the actual LED and the on-screen LED are on.

 

 In the image above, both LEDs are turned on. The buttons below the LED indicators on the LCD toggle the state of the LEDs.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
' --------------------------------------------------------------
' CGMICROBOARD2
' 2.4" SPI 240X320 LCD display w/touch
' OPTION LCDPANEL ILI9341, L, 21, 22, 23
' OPTION TOUCH 18, 14
' --------------------------------------------------------------
 
OPTION explicit
 
DIM onewirepin = 17
DIM ledoff = 1
DIM ledon = 0
DIM greenled = ledoff
DIM yellowled = ledoff
DIM ack1
DIM stat1
DIM touched
DIM greenstate
DIM yellowstate
PAUSE 100
' Set interrupt that processes control touches
GUI INTERRUPT PenDown
COLOR RGB(255,255,255),RGB(120,120,120)
FONT 3
CLS
 
' Make status LEDs on LCD
GUI LED #1, "Green LED", 60, 20, 20, RGB(0,255,0)
GUI LED #2, "Yellow LED", 60, 60, 20, RGB(255,255,0)
GUI BUTTON #3, "Green LED", 50, 120, 200, 40, RGB(0,255,0), RGB(120,120,120)
GUI BUTTON #4, "Yellow LED", 50, 180, 200, 40, RGB(255,255,0), RGB(120,120,120)
DO
  ONEWIRE Write onewirepin, 1, 4, &hCC, &h5A, greenled + yellowled*2, &hFF - greenled - yellowled*2
  ONEWIRE READ onewirepin, 0, 2, ack1, stat1
  ONEWIRE RESET onewirepin
  PAUSE 500
LOOP
END
 
 
' --------------------------------------------------------------
' Process touch
' --------------------------------------------------------------
SUB PenDown
  touched = TOUCH(REF)
 
  IF touched = 3 THEN
    greenstate = CTRLVAL(1)
    IF greenstate = 0 THEN
      CTRLVAL(1) = 1
      greenled = ledon
    ELSE
      CTRLVAL(1) = 0
      greenled = ledoff
    ENDIF
  ENDIF
 
  IF touched = 4 THEN
    yellowstate = CTRLVAL(2)
    IF yellowstate = 0 THEN
      CTRLVAL(2) = 1
      yellowled = ledon
    ELSE
      CTRLVAL(2) = 0
      yellowled = ledoff
    ENDIF
  ENDIF
 
END SUB

A Ton of Documentation

Open all | Close all

Projects made by Gizmo, Friends, and Members

open all | close all

Recent GizmoBlog Musings

  • Altair 8800 using a ColorMax!
  • Re-energizing the ColorMax, Pt. 3

Visit us!

  • Facebook

Electronic Products for Creative Minds

CircuitGizmos is your source for electronic products that help you create your embedded projects. Here at CircuitGizmos.com you will find a friendly store filled with creative products and all of the documentation that you need to use these gizmos.

We create devices that we believe make electronics fun, but we also know that our products are used for professional designs. For decades we have designed products for commercial, military, and medical industries. Our gizmos here are great for engineers and hobbyists alike.

Copyright © 2008+ CircuitGizmos, L.L.C. All rights reserved

Image already added

Recently Viewed Products

Copyright © 2021 · Generate Pro Theme on Genesis Framework · WordPress · Log in