Difference between revisions of "DB2.1 1.0"

Latest revision as of 19:55, 27 March 2018

DB2.1 v1.0 - 2 Button Doorbell
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Developer	Alexander Christian
Status	In Development
Microcontroller/Board	M0dularis+
KNX connectivity	MicroBCU

Description

PCB replacement for 2n Entrycom IP Uni doorbell. It will have 2 buttons with RGB background LED light and a speaker for PCM WAVE playback.

Hardware

M0dularis+ is used as base-controller.

		Description	Pin		Description
		GND / KNX GND	1	2	GND from 24V Input
	SJ: 3.3V	VCC	3	4	24V from 24V Input
	PA22/SDA	SDA / IO0	5	6	IO3	SJ: PA02/A0	PCM Audio Output via DAC on A0
	PA23/SCL	SCL / IO1	7	8	ExtINT Application / IO2	SJ: PA18/D10*#	ReedRelay Speaker Enable
PWM R on LED1	PA09/D3*#	Option0	9	10	Option7	PA17/D13*#	PWM R on LED2
PWM G on LED1	PA08/D4*	Option1	11	12	Option6	PA16/D11*#	PWM G on LED2
PWM B on LED1	PA15/D5*#	Option2	13	14	Option5	PA20/D6*#	PWM B on LED2
Button 1	PA14/D2#	Option3	15	16	Option4	PA21/D7#	Button 2

Solder-Jumper (SJ) configuration:

IO3: SJ to A0
IO2: SJ to D10
Application connector: SJ to 3.3V
Frontend connector: SJ to 3.3V (but is unused)
I2C (on IO0/IO1): PullUp

* = PWM capable
# = INT capable

24V from yellow/white bus connector -> LM2596 step-down buck converter module -> 5V supply voltage for amplifier + LEDs

Software

The software enabled the user to fully have control over the buttons. One idea ist to have multiple states for the buttons. For instance

Default (white background light): Rings the bell
Postman (yellow background light): Ringing the bell will playback a wave file, telling where he can put the package that you are waiting for. Additional things can be triggered by calling a KNX GroupAddress, f.i. open the garage door half a meter so safely store the package.
...

Open Questions

how to get files onto the SPI flash?!

-> see filetransfer via Bus PoC

User Documentation

Developer Documentation

Build It

Links

@@ Line 34: / Line 34: @@
 ! scope="col"|
 ! scope="col"|Description
-! scope="col"|Pin
+! scope="col" colspan="2"|Pin
-! scope="col"|Pin
 ! scope="col"|Description
 ! scope="col"|
@@ Line 41: / Line 40: @@
 ! scope="col"|
 ! scope="col"|
 |-
 |
@@ Line 59: / Line 57: @@
 |
 |
-|SJ: 5V
+|SJ: 3.3V
 | style="background-color: red;"|VCC
 |3
@@ Line 90: / Line 88: @@
 |8
 | style="background-color: lightblue;"|ExtINT Application / IO2
-|SJ: PA18/D10*# or PB09/A2
+|SJ: PA18/D10*#
-|
+|ReedRelay Speaker Enable
 |
 |
@@ Line 97: / Line 95: @@
 |
 |
-|Button 1
+|PWM R on LED1
 |PA09/D3*#
 | style="background-color: mediumseagreen;"|Option0
@@ Line 104: / Line 102: @@
 | style="background-color: mediumseagreen;"|Option7
 |PA17/D13*#
-|Button 2
+|PWM R on LED2
 |
 |
@@ Line 110: / Line 108: @@
 |
 |
-|PWM R on LED1
+|PWM G on LED1
 |PA08/D4*
 | style="background-color: mediumseagreen;"|Option1
@@ Line 117: / Line 115: @@
 | style="background-color: mediumseagreen;"|Option6
 |PA16/D11*#
-|PWM R on LED2
+|PWM G on LED2
 |
 |
@@ Line 123: / Line 121: @@
 |
 |
-|PWM G on LED1
+|PWM B on LED1
 |PA15/D5*#
 | style="background-color: mediumseagreen;"|Option2
@@ Line 130: / Line 128: @@
 | style="background-color: mediumseagreen;"|Option5
 |PA20/D6*#
-|PWM G on LED2
+|PWM B on LED2
 |
 |
@@ Line 136: / Line 134: @@
 |
 |
-|PWM B on LED1
+|Button 1
 |PA14/D2#
 | style="background-color: mediumseagreen;"|Option3
@@ Line 143: / Line 141: @@
 | style="background-color: mediumseagreen;"|Option4
 |PA21/D7#
-|PWM B on LED2
+|Button 2
 |
 |
@@ Line 149: / Line 147: @@
-Solder-Jumper configuration:
+Solder-Jumper (SJ) configuration:
-* IO3: SJ for A0
+* IO3: SJ to A0
-* IO2: D10 or A2
+* IO2: SJ to D10
-* Application connector: 5V
+* Application connector: SJ to 3.3V
-* Frontend connector: 5V
+* Frontend connector: SJ to 3.3V (but is unused)
 * I2C (on IO0/IO1): PullUp