Snippets
Created by
Peter Scargill
last modified
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// now superceded by OLED version
#define LIGHT 12
#define RELAY 11
#define WARNING 10
#define WAITING 60
#define ONDELAY 20
#define SWITCHON 3.7
#define SWITCHOFF 3.1
// Below for lcd
/*
This Code has extra features
including a XY positioning function on Display
and a Line Draw function on Nokia 3310 LCD
It is modded from the original
http://playground.arduino.cc/Code/PCD8544
*/
// Mods by Jim Park
// jim(^dOt^)buzz(^aT^)gmail(^dOt^)com
// hope it works for you
#define PIN_PWM 9 // backlight
#define PIN_SCE 6 // LCD CS .... Pin 3
#define PIN_RESET 7 // LCD RST .... Pin 1
#define PIN_DC 5 // LCD Dat/Com. Pin 5
#define PIN_SDIN 4 // LCD SPIDat . Pin 6
#define PIN_SCLK 3 // LCD SPIClk . Pin 4
// LCD Gnd .... Pin 2
// LCD Vcc .... Pin 8
// LCD Vlcd ... Pin 7
#define LCD_C LOW
#define LCD_D HIGH
#define LCD_X 84
#define LCD_Y 48
#define LCD_CMD 0
uint32_t secs=0;
uint32_t upSecs=0;
uint32_t downSecs=0;
int a = 0;
static const byte ASCII[][5] =
{
{0x00, 0x00, 0x00, 0x00, 0x00} // 20
,{0x00, 0x00, 0x5f, 0x00, 0x00} // 21 !
,{0x00, 0x07, 0x00, 0x07, 0x00} // 22 "
,{0x14, 0x7f, 0x14, 0x7f, 0x14} // 23 #
,{0x24, 0x2a, 0x7f, 0x2a, 0x12} // 24 $
,{0x23, 0x13, 0x08, 0x64, 0x62} // 25 %
,{0x36, 0x49, 0x55, 0x22, 0x50} // 26 &
,{0x00, 0x05, 0x03, 0x00, 0x00} // 27 '
,{0x00, 0x1c, 0x22, 0x41, 0x00} // 28 (
,{0x00, 0x41, 0x22, 0x1c, 0x00} // 29 )
,{0x14, 0x08, 0x3e, 0x08, 0x14} // 2a *
,{0x08, 0x08, 0x3e, 0x08, 0x08} // 2b +
,{0x00, 0x50, 0x30, 0x00, 0x00} // 2c ,
,{0x08, 0x08, 0x08, 0x08, 0x08} // 2d -
,{0x00, 0x60, 0x60, 0x00, 0x00} // 2e .
,{0x20, 0x10, 0x08, 0x04, 0x02} // 2f /
,{0x3e, 0x51, 0x49, 0x45, 0x3e} // 30 0
,{0x00, 0x42, 0x7f, 0x40, 0x00} // 31 1
,{0x42, 0x61, 0x51, 0x49, 0x46} // 32 2
,{0x21, 0x41, 0x45, 0x4b, 0x31} // 33 3
,{0x18, 0x14, 0x12, 0x7f, 0x10} // 34 4
,{0x27, 0x45, 0x45, 0x45, 0x39} // 35 5
,{0x3c, 0x4a, 0x49, 0x49, 0x30} // 36 6
,{0x01, 0x71, 0x09, 0x05, 0x03} // 37 7
,{0x36, 0x49, 0x49, 0x49, 0x36} // 38 8
,{0x06, 0x49, 0x49, 0x29, 0x1e} // 39 9
,{0x00, 0x36, 0x36, 0x00, 0x00} // 3a :
,{0x00, 0x56, 0x36, 0x00, 0x00} // 3b ;
,{0x08, 0x14, 0x22, 0x41, 0x00} // 3c <
,{0x14, 0x14, 0x14, 0x14, 0x14} // 3d =
,{0x00, 0x41, 0x22, 0x14, 0x08} // 3e >
,{0x02, 0x01, 0x51, 0x09, 0x06} // 3f ?
,{0x32, 0x49, 0x79, 0x41, 0x3e} // 40 @
,{0x7e, 0x11, 0x11, 0x11, 0x7e} // 41 A
,{0x7f, 0x49, 0x49, 0x49, 0x36} // 42 B
,{0x3e, 0x41, 0x41, 0x41, 0x22} // 43 C
,{0x7f, 0x41, 0x41, 0x22, 0x1c} // 44 D
,{0x7f, 0x49, 0x49, 0x49, 0x41} // 45 E
,{0x7f, 0x09, 0x09, 0x09, 0x01} // 46 F
,{0x3e, 0x41, 0x49, 0x49, 0x7a} // 47 G
,{0x7f, 0x08, 0x08, 0x08, 0x7f} // 48 H
,{0x00, 0x41, 0x7f, 0x41, 0x00} // 49 I
,{0x20, 0x40, 0x41, 0x3f, 0x01} // 4a J
,{0x7f, 0x08, 0x14, 0x22, 0x41} // 4b K
,{0x7f, 0x40, 0x40, 0x40, 0x40} // 4c L
,{0x7f, 0x02, 0x0c, 0x02, 0x7f} // 4d M
,{0x7f, 0x04, 0x08, 0x10, 0x7f} // 4e N
,{0x3e, 0x41, 0x41, 0x41, 0x3e} // 4f O
,{0x7f, 0x09, 0x09, 0x09, 0x06} // 50 P
,{0x3e, 0x41, 0x51, 0x21, 0x5e} // 51 Q
,{0x7f, 0x09, 0x19, 0x29, 0x46} // 52 R
,{0x46, 0x49, 0x49, 0x49, 0x31} // 53 S
,{0x01, 0x01, 0x7f, 0x01, 0x01} // 54 T
,{0x3f, 0x40, 0x40, 0x40, 0x3f} // 55 U
,{0x1f, 0x20, 0x40, 0x20, 0x1f} // 56 V
,{0x3f, 0x40, 0x38, 0x40, 0x3f} // 57 W
,{0x63, 0x14, 0x08, 0x14, 0x63} // 58 X
,{0x07, 0x08, 0x70, 0x08, 0x07} // 59 Y
,{0x61, 0x51, 0x49, 0x45, 0x43} // 5a Z
,{0x00, 0x7f, 0x41, 0x41, 0x00} // 5b [
,{0x02, 0x04, 0x08, 0x10, 0x20} // 5c ¥
,{0x00, 0x41, 0x41, 0x7f, 0x00} // 5d ]
,{0x04, 0x02, 0x01, 0x02, 0x04} // 5e ^
,{0x40, 0x40, 0x40, 0x40, 0x40} // 5f _
,{0x00, 0x01, 0x02, 0x04, 0x00} // 60 `
,{0x20, 0x54, 0x54, 0x54, 0x78} // 61 a
,{0x7f, 0x48, 0x44, 0x44, 0x38} // 62 b
,{0x38, 0x44, 0x44, 0x44, 0x20} // 63 c
,{0x38, 0x44, 0x44, 0x48, 0x7f} // 64 d
,{0x38, 0x54, 0x54, 0x54, 0x18} // 65 e
,{0x08, 0x7e, 0x09, 0x01, 0x02} // 66 f
,{0x0c, 0x52, 0x52, 0x52, 0x3e} // 67 g
,{0x7f, 0x08, 0x04, 0x04, 0x78} // 68 h
,{0x00, 0x44, 0x7d, 0x40, 0x00} // 69 i
,{0x20, 0x40, 0x44, 0x3d, 0x00} // 6a j
,{0x7f, 0x10, 0x28, 0x44, 0x00} // 6b k
,{0x00, 0x41, 0x7f, 0x40, 0x00} // 6c l
,{0x7c, 0x04, 0x18, 0x04, 0x78} // 6d m
,{0x7c, 0x08, 0x04, 0x04, 0x78} // 6e n
,{0x38, 0x44, 0x44, 0x44, 0x38} // 6f o
,{0x7c, 0x14, 0x14, 0x14, 0x08} // 70 p
,{0x08, 0x14, 0x14, 0x18, 0x7c} // 71 q
,{0x7c, 0x08, 0x04, 0x04, 0x08} // 72 r
,{0x48, 0x54, 0x54, 0x54, 0x20} // 73 s
,{0x04, 0x3f, 0x44, 0x40, 0x20} // 74 t
,{0x3c, 0x40, 0x40, 0x20, 0x7c} // 75 u
,{0x1c, 0x20, 0x40, 0x20, 0x1c} // 76 v
,{0x3c, 0x40, 0x30, 0x40, 0x3c} // 77 w
,{0x44, 0x28, 0x10, 0x28, 0x44} // 78 x
,{0x0c, 0x50, 0x50, 0x50, 0x3c} // 79 y
,{0x44, 0x64, 0x54, 0x4c, 0x44} // 7a z
,{0x00, 0x08, 0x36, 0x41, 0x00} // 7b {
,{0x00, 0x00, 0x7f, 0x00, 0x00} // 7c |
,{0x00, 0x41, 0x36, 0x08, 0x00} // 7d }
,{0x10, 0x08, 0x08, 0x10, 0x08} // 7e ←
,{0x00, 0x06, 0x09, 0x09, 0x06} // 7f →
};
void LcdCharacter(char character)
{
LcdWrite(LCD_D, 0x00);
for (int index = 0; index < 5; index++)
{
LcdWrite(LCD_D, ASCII[character - 0x20][index]);
}
LcdWrite(LCD_D, 0x00);
}
void LcdClear(void)
{
for (int index = 0; index < LCD_X * LCD_Y / 8; index++)
{
LcdWrite(LCD_D, 0x00);
}
}
void LcdInitialise(void)
{
pinMode(PIN_SCE, OUTPUT);
pinMode(PIN_RESET, OUTPUT);
pinMode(PIN_DC, OUTPUT);
pinMode(PIN_SDIN, OUTPUT);
pinMode(PIN_SCLK, OUTPUT);
pinMode(PIN_PWM, OUTPUT);
analogWrite(PIN_PWM,255);
digitalWrite(PIN_RESET, LOW);
// delay(1);
digitalWrite(PIN_RESET, HIGH);
LcdWrite( LCD_CMD, 0x21 ); // LCD Extended Commands.
LcdWrite( LCD_CMD, 0xB1); // Set LCD Vop (Contrast). //B1
LcdWrite( LCD_CMD, 0x04 ); // Set Temp coefficent. //0x04
LcdWrite( LCD_CMD, 0x14 ); // LCD bias mode 1:48. //0x13
LcdWrite( LCD_CMD, 0x0C ); // LCD in normal mode. 0x0d for inverse
LcdWrite(LCD_C, 0x20);
LcdWrite(LCD_C, 0x0C);
}
void LcdString(char *characters)
{
while (*characters)
{
LcdCharacter(*characters++);
}
}
void LcdWrite(byte dc, byte data)
{
digitalWrite(PIN_DC, dc);
digitalWrite(PIN_SCE, LOW);
shiftOut(PIN_SDIN, PIN_SCLK, MSBFIRST, data);
digitalWrite(PIN_SCE, HIGH);
}
// gotoXY routine to position cursor
// x - range: 0 to 84
// y - range: 0 to 5
void gotoXY(int x, int y)
{
LcdWrite( 0, 0x80 | x); // Column.
LcdWrite( 0, 0x40 | y); // Row.
}
void LcdP(char *fmt, ...)
{
char buf[128]; // resulting string limited to 128 chars
va_list args;
va_start(args, fmt);
vsnprintf(buf, 128, fmt, args);
va_end(args);
LcdString(buf);
}
// end of lcd stuff
#include <stdarg.h>
uint32_t mymillis = 0;
uint8_t lightState = 0;
uint8_t state = 0; // 0 is power up, 1 is on, 2 is turning off
float vol;
uint8_t onDelay = 0;
uint16_t lightOnSet = 2;
uint16_t lightOffSet = 1022;
float offVoltage = SWITCHOFF;
float onVoltage = SWITCHON;
float average=0;
char *theState = "standby";
float voltage()
{
// read the input on analog pin 0
int sensorValue = analogRead(A0);
// Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):
float vols = sensorValue * (5.0 / 1023.0);
// print out the value you read:
return (vols);
}
void p(char *fmt, ...)
{
char buf[128]; // resulting string limited to 128 chars
va_list args;
va_start(args, fmt);
vsnprintf(buf, 128, fmt, args);
va_end(args);
Serial.print(buf);
}
void setup()
{
// put your setup code here, to run once:
Serial.begin(57600);
digitalWrite(LIGHT, LOW);
digitalWrite(RELAY, LOW);
digitalWrite(WARNING, LOW);
pinMode(LIGHT, OUTPUT);
pinMode(RELAY, OUTPUT);
pinMode(WARNING, OUTPUT);
average=voltage();
LcdInitialise();
LcdClear();
LcdString("Init!");
}
void loop()
{
// put your main code here, to run repeatedly:
if (mymillis <= millis())
{
vol=voltage();
average+=(vol/16.0);
average=average*16.0/17.0;
vol=average;
if (state == 0)
{
if (vol > onVoltage)
{
if (onDelay == 0)
{
onDelay = ONDELAY*2;
theState = "starting";
}
}
}
else if (state == 1)
{
if (vol < offVoltage)
{
state = (WAITING*2) + 2;
theState = "warning ";
}
}
else if (state > 2)
{
digitalWrite(WARNING, HIGH);
state--;
if (state == 2)
{
state = 0;
digitalWrite(RELAY, LOW); downSecs=0;
analogWrite(PIN_PWM,255); // only 3v3 intended so this will likely do
theState = "standby ";
}
}
else
digitalWrite(WARNING, LOW);
if (vol > onVoltage)
{
if (onDelay)
{
if (--onDelay == 0)
{
state = 1;
analogWrite(PIN_PWM,128); // only 3v3 intended so this will likely do
theState = "active "; upSecs=0;
}
}
}
else
{
if (onDelay)
{
onDelay=0; theState = "standby "; state=0;
}
}
if (lightState == 0)
{
p("{\"voltage\":");
Serial.print(vol);
p(",\"status\":\"%s\"}\r\n", theState); // sadly printf here does not support floats
gotoXY(0,0); LcdP("Volts: %d.%d",int(vol),((int(vol*100))%100)/10);
gotoXY(0,1); LcdP("S: %s",theState);
gotoXY(0,2); LcdP("H:%d.%d L:%d.%d ",int(onVoltage),((int(onVoltage*100))%100)/10,int(offVoltage),((int(offVoltage*100))%100)/10);
gotoXY(0,3); LcdP("%05ld:%02ld:%02ld",upSecs/3600,(upSecs%3600)/60, upSecs%60);
gotoXY(0,4); LcdP("%05ld:%02ld:%02ld",downSecs/3600,(downSecs%3600)/60, downSecs%60);
gotoXY(0,5); LcdP("%05ld:%02ld:%02ld",secs/3600,(secs%3600)/60, secs%60);
lightState = 1;
digitalWrite(LIGHT, HIGH);
switch (state)
{
case 0:
if (onDelay)
{
lightOnSet = 80;
lightOffSet = 944;
}
else
{
lightOnSet = 1;
lightOffSet = 1023;
}
digitalWrite(RELAY, LOW);
break; // battery is low
case 1:
lightOnSet = 980;
lightOffSet = 44;
digitalWrite(RELAY, HIGH);
break; // battery is ok
default:
lightOnSet = 512;
lightOffSet = 512;
break; // intermediate state;
}
mymillis = millis() + lightOnSet;
}
else
{
lightState = 0;
digitalWrite(LIGHT, LOW);
mymillis = millis() + lightOffSet;
secs++;
if (state==1) upSecs++; else downSecs++;
}
}
}
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