update strain docs

README.md

@@ -1,31 +1,4 @@
-# Upload
-
-```bash
-platformio run --target upload
-```
-
-## Single strain
-
-Individual strain consists of two 1k resistors connected as a voltage
-divider. Connection with two fixed 1k resistors as a voltage divider
-creates a full bridge. **50kg max.**
-
-![Single strain half bridge with two additional 1k resistors
-breadboard view](./docs/1-strain_bb.jpg)
-
-![Single strain half bridge with two additional 1k resistors
-schematic](./docs/1-strain_schem.jpg)
-
-## Double strain
-
-Using two single strain half bridges together forms a full bridge. **100kg
-max.**
-
-![Two single strain half bridges togerher breadboard
-view](./docs/2-strain_bb.jpg)
-
-![Two single strain half bridges togerher breadboard
-schematic](./docs/2-strain_schem.jpg)
+# Bee weighter
 
 ## Quadruple strain
 

docs/README.md

@@ -0,0 +1,35 @@
+# Strain connections
+
+## Single strain
+
+Individual strain consists of two 1k resistors connected as a voltage
+divider. Connection with two fixed 1k resistors as a voltage divider
+creates a full bridge. **50kg max.**
+
+![Single strain half bridge with two additional 1k resistors
+breadboard view](./docs/1-strain_bb.jpg)
+
+![Single strain half bridge with two additional 1k resistors
+schematic](./docs/1-strain_schem.jpg)
+
+## Double strain
+
+Using two single strain half bridges together forms a full bridge. **100kg
+max.**
+
+![Two single strain half bridges togerher breadboard
+view](./docs/2-strain_bb.jpg)
+
+![Two single strain half bridges togerher breadboard
+schematic](./docs/2-strain_schem.jpg)
+
+## Quadruple strain
+
+Using four single strain half bridges together again forms a full bridge,
+with the resistance doubled. **200kg max.**
+
+![Two single strain half bridges togerher breadboard
+view](./docs/4-strain_bb.jpg)
+
+![Two single strain half bridges togerher breadboard
+schematic](./docs/4-strain_schem.jpg)

src/main.cpp__

@@ -1,197 +0,0 @@
-// CONNECTIONS:
-// DS1307 SDA --> SDA
-// DS1307 SCL --> SCL
-// DS1307 VCC --> 5v
-// DS1307 GND --> GND
-
-#define countof(a) (sizeof(a) / sizeof(a[0]))
-
-/* for software wire use below
-#include <SoftwareWire.h>  // must be included here so that Arduino library object file references work
-#include <RtcDS3231.h>
-#include <EepromAT24C32.h>
-
-SoftwareWire myWire(SDA, SCL);
-RtcDS1307<SoftwareWire> Rtc(myWire);
-for software wire use above
-
-for normal hardware wire use below */
-#include <Wire.h> // must be included here so that Arduino library object file references work
-#include <RtcDS3231.h>
-#include <EepromAT24C32.h>
-
-RtcDS3231<TwoWire> Rtc(Wire);
-EepromAt24c32<TwoWire> RtcEeprom(Wire);
-
-// if you have any of the address pins on the RTC soldered together
-// then you need to provide the state of those pins, normally they
-// are connected to vcc with a reading of 1, if soldered they are 
-// grounded with a reading of 0.  The bits are in the order A2 A1 A0
-// thus the following would have the A2 soldered together
-// EepromAt24c32<TwoWire> RtcEeprom(Wire, 0b011);
-
-/* for normal hardware wire use above */
-
-// nothing longer than 32 bytes
-// rtc eeprom memory is 32 byte pages
-// writing is limited to each page, so it will wrap at page
-// boundaries. 
-// But reading is only limited by the buffer in Wire class which
-// by default is 32
-const char data[] = "What time is it in Greenwich?";
-const uint16_t stringAddr = 64; // stored on page boundary
-
-void printDateTime(const RtcDateTime& dt);
-
-void setup () 
-{
-    Serial.begin(9600);
-
-    Serial.print("compiled: ");
-    Serial.print(__DATE__);
-    Serial.println(__TIME__);
-
-    //--------RTC SETUP ------------
-    // if you are using ESP-01 then uncomment the line below to reset the pins to
-    // the available pins for SDA, SCL
-    // Wire.begin(0, 2); // due to limited pins, use pin 0 and 2 for SDA, SCL
-    
-    Rtc.Begin();
-    RtcEeprom.Begin();
-    
-    RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__);
-    printDateTime(compiled);
-    Serial.println();
-
-    if (!Rtc.IsDateTimeValid()) 
-    {
-        if (Rtc.LastError() != 0)
-        {
-            // we have a communications error
-            // see https://www.arduino.cc/en/Reference/WireEndTransmission for 
-            // what the number means
-            Serial.print("RTC communications error = ");
-            Serial.println(Rtc.LastError());
-        }
-        else
-        {
-            Serial.println("RTC lost confidence in the DateTime!");
-            Rtc.SetDateTime(compiled);
-        }
-    }
-
-    if (!Rtc.GetIsRunning())
-    {
-        Serial.println("RTC was not actively running, starting now");
-        Rtc.SetIsRunning(true);
-    }
-
-    RtcDateTime now = Rtc.GetDateTime();
-    if (now < compiled) 
-    {
-        Serial.println("RTC is older than compile time!  (Updating DateTime)");
-        Rtc.SetDateTime(compiled);
-    }
-
-    // never assume the Rtc was last configured by you, so
-    // just clear them to your needed state
-    Rtc.Enable32kHzPin(false);
-    Rtc.SetSquareWavePin(DS3231SquareWavePin_ModeNone); 
-
-/* comment out on a second run to see that the info is stored long term */
-    // Store something in memory on the Eeprom
-
-    // store starting address of string
-    RtcEeprom.SetMemory(0, stringAddr); 
-    // store the string, nothing longer than 32 bytes due to paging
-    uint8_t written = RtcEeprom.SetMemory(stringAddr, (const uint8_t*)data, sizeof(data) - 1); // remove the null terminator strings add
-    // store the length of the string
-    RtcEeprom.SetMemory(1, written); // store the 
-/* end of comment out section */
-}
-
-void loop () 
-{
-    if (!Rtc.IsDateTimeValid()) 
-    {
-        if (Rtc.LastError() != 0)
-        {
-            // we have a communications error
-            // see https://www.arduino.cc/en/Reference/WireEndTransmission for 
-            // what the number means
-            Serial.print("RTC communications error = ");
-            Serial.println(Rtc.LastError());
-        }
-        else
-        {
-            // Common Causes:
-            //    1) the battery on the device is low or even missing and the power line was disconnected
-            Serial.println("RTC lost confidence in the DateTime!");
-        }
-    }
-
-    RtcDateTime now = Rtc.GetDateTime();
-
-    printDateTime(now);
-    Serial.println();
-
-    delay(5000);
-
-    // read data
-
-    // get the offset we stored our data from address zero
-    uint8_t address = RtcEeprom.GetMemory(0);
-    if (address != stringAddr)
-    {
-        Serial.print("address didn't match ");
-        Serial.println(address);
-    }
-    
-    {
-        // get the size of the data from address 1
-        uint8_t count = RtcEeprom.GetMemory(1);
-        uint8_t buff[64];
-
-        // get our data from the address with the given size
-        uint8_t gotten = RtcEeprom.GetMemory(address, buff, count);
-
-        if (gotten != count ||
-            count != sizeof(data) - 1) // remove the extra null terminator strings add
-        {
-            Serial.print("something didn't match, count = ");
-            Serial.print(count, DEC);
-            Serial.print(", gotten = ");
-            Serial.print(gotten, DEC);
-            Serial.println();
-        }
-        Serial.print("data read (");
-        Serial.print(gotten);
-        Serial.print(") = \"");
-        for (uint8_t ch = 0; ch < gotten; ch++)
-        {
-            Serial.print((char)buff[ch]);
-        }
-        Serial.println("\"");
-    }
-
-    
-    delay(5000);
-}
-
-
-
-void printDateTime(const RtcDateTime& dt)
-{
-    char datestring[20];
-
-    snprintf_P(datestring, 
-            countof(datestring),
-            PSTR("%02u/%02u/%04u %02u:%02u:%02u"),
-            dt.Month(),
-            dt.Day(),
-            dt.Year(),
-            dt.Hour(),
-            dt.Minute(),
-            dt.Second() );
-    Serial.print(datestring);
-}