step-up convertor at PWM 3 working

[bike-lights.git] / pins.txt

diff --git a/pins.txt b/pins.txt
index ae301f4da7c665be9e601d9782c274bfeeac7174..ae2b6f6a02c5b6e61769acbfa8be9ee3fdd95f57 100644 (file)
--- a/pins.txt
+++ b/pins.txt
@@ -1,25 +1,79 @@
-     (MOSI/DI/SDA/!OC1A/PCINT8) PB0 MOSI,SW2    SENSE1+ PA0 (ADC0/DI/SDA/PCINT0)
+     (MOSI/DI/SDA/!OC1A/PCINT8) PB0 MOSI,LED1   SENSE1+ PA0 (ADC0/DI/SDA/PCINT0)
           (MISO/DO/OC1A/PCINT9) PB1 MISO,PWM1  SENSE12- PA1 (ADC1/DO/PCINT1)
    (SCK/USCK/SCL/!OC1B/PCINT10) PB2 SCK,LED2    SENSE2+ PA2 (ADC2/INT1/USCK/SCL/PCINT2)
-                 (OC1B/PCINT11) PB3 PWM2        SENSE3- PA3 (AREF/PCINT3)
+                 (OC1B/PCINT11) PB3 PWM2            SW2 PA3 (AREF/PCINT3)
                                 VCC                     AGND
                                 GND                     AVCC
-(ADC7/!OC1D/CLKI/XTAL1/PCINT12) PB4 LED1        SENSE3+ PA4 (ADC3/ICP0/PCINT4)
- (ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5 PWM3        AMBIENT PA5 (ADC4/AIN2/PCINT5)
-         (ADC9/INT0/T0/PCINT14) PB6 SW1      VBAT_SENSE PA6 (ADC5/AIN0/PCINT6)
-          (ADC10/RESET/PCINT15) PB7 RST      VB_SEN_ENA PA7 (ADC6/AIN1/PCINT7)
-
-
-PWM1 - rear spotlight
-PWM2 - read wide light
-PWM3 - front light
-SENSE1
-SENSE2
-SENSE3
-Ambient sense
-Analog-on
-SW1 - on/off button
-SW2 - temporary light boost
-LED1
-LED2
+(ADC7/!OC1D/CLKI/XTAL1/PCINT12) PB4 LED3         SENSE5 PA4 (ADC3/ICP0/PCINT4)
+ (ADC8/OC1D/CLKO/XTAL2/PCINT13) PB5 PWM3        SENSE3+ PA5 (ADC4/AIN2/PCINT5)
+         (ADC9/INT0/T0/PCINT14) PB6 SW1        SENSE34- PA6 (ADC5/AIN0/PCINT6)
+          (ADC10/RESET/PCINT15) PB7 RST         SENSE4+ PA7 (ADC6/AIN1/PCINT7)
 
+
+Lights:
+1 - front light
+2 - rear spotlight
+3 - rear LED strip
+
+PWM1
+PWM2
+PWM3
+SENSE1 - light 1
+SENSE2 - light 2
+SENSE3 - light 3
+SENSE4 - ambient light sensor
+SENSE5 - battery voltage sense
+SW1 - mode switch
+SW2 - temporary light boost or whatever
+LED1 - speedometer illumination LED
+LED2 - status LED
+
+
+ADC
+single-ended resolution:
+0.00107 V .. 1.1 V
+differential resolution 8x gain:
+0.00013 V .. 0.1375 V
+differential resolution 20 gain:
+0.000054 .. 0.055 V
+differential resolution 32x gain:
+0.000036 .. 0.03438 V
+analog input resistance 100 MOhm
+
+LED current sense, 0.033R sensing resistor:
+                       min gain max gain
+   20 mA => 0.00066 V               8x
+  100 mA => 0.0033 V
+  150 mA => 0.0050 V
+  300 mA => 0.0099 V
+  350 mA => 0.0116 V
+  700 mA => 0.0231 V
+ 1000 mA => 0.0330 V   32x
+ 1500 mA => 0.0495 V   20x         0.0495 W
+ 2000 mA => 0.0660 V    8x         0.066 W
+ 3000 mA => 0.0990 V    8x         0.1 W
+
+Battery sense
+range 5-15 V
+1.5M..15k
+cca 10  uA @15V
+    3.3 uA  @5V
+
+Ambient light sense
+20 lx -- cca 333 kOhm
+200 lx -- cca 35 kOhm
+
+lx:
+1lx == full moon
+400 lx == sunset/sunrise
+10 klx == full daylight
+
+need probably 1-1k lux scale
+
+Photodiode:
+5 V, 1M5 resistor + photodiode: voltage at the photodiode
+darkness: 3.71 V => 4.31 MOhm
+bathroom without lights, only outside lights: 3.68 V => 4.18 MOhm
+kitchen light: 3.29 V => 2.89 MOhm
+bathroom halogen lights 0.02 V => 6 KOhm
+battery light: 0.01 V => 3 KOhm