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DIY with Wio Battery Chassis #51

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923e3d1
DIY with Wio Battery pack
AkosLukacs Aug 20, 2022
476e77a
Update DEVELOPMENT.md
AkosLukacs Aug 20, 2022
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10 changes: 5 additions & 5 deletions WioLoRaWanFieldTester.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -26,9 +26,9 @@
#include "testeur.h"
#include "gps.h"

#if HWTARGET == LORAE5 && defined WITH_LIPO
#if WITH_WIO_BATTERY_PACK
#include <SparkFunBQ27441.h>
const unsigned int BATTERY_CAPACITY = 600;
const unsigned int BATTERY_CAPACITY = 650;
#endif


Expand Down Expand Up @@ -78,7 +78,7 @@ void setup() {
uint32_t s = millis();
while ( !Serial && (millis() - s) < 3000);
#endif
#if HWTARGET == LORAE5 && defined WITH_LIPO
#if WITH_WIO_BATTERY_PACK
if ( lipo.begin() ) {
state.batOk = true;
lipo.setCapacity(BATTERY_CAPACITY);
Expand Down Expand Up @@ -170,15 +170,15 @@ void loop(void) {

#ifdef WITH_LIPO
if ( batUpdateTime > 1000 ) {
#if HWTARGET == RFM95
#if HWTARGET == RFM95 && WITH_WIO_BATTERY_PACK == 0
uint32_t v = analogRead(LIPO_ADC);
v = 2*( 3300 * v ) / 1024; // should be 2230 ...
#ifdef LIPO_OFFSET_MV
v += LIPO_OFFSET_MV;
#endif
state.batVoltage = v;
state.batPercent = batteryPercent(state.batVoltage);
#elif HWTARGET == LORAE5
#elif WITH_WIO_BATTERY_PACK == 1
if ( state.batOk ) {
unsigned int soc = lipo.soc(); // Read state-of-charge (%)
unsigned int volts = lipo.voltage(); // Read battery voltage (mV)
Expand Down
6 changes: 6 additions & 0 deletions config.h
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Expand Up @@ -31,6 +31,7 @@
#define LORAE5 1 // Make sure the board ROLE is SLAVE

// 2 - select the target board, original one based on RFM95 or Seed LoRa E5 version
// go to 3.1, and uncomment that line, if you have a wio battery pack
#define HWTARGET LORAE5

#if HWTARGET == LORAE5
Expand Down Expand Up @@ -61,6 +62,11 @@
#define WITH_LIPO
#endif

// to allow using wio battery pack with DIY RFM95 LoRa module
#define WITH_WIO_BATTERY_PACK (HWTARGET == LORAE5 && defined WITH_LIPO)
// 3.1 - if you have a DIY with the Wio battery pack, uncomment this line to get Wio battery pack state of charge
// #define WITH_WIO_BATTERY_PACK 1

// 4 - Active on of the possible Splash screen ( or none or both )
#define WITH_SPLASH 1
#define WITH_SPLASH_HELIUM 1
Expand Down
3 changes: 2 additions & 1 deletion doc/DEVELOPMENT.md
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Expand Up @@ -20,7 +20,7 @@ https://files.seeedstudio.com/arduino/package_seeeduino_boards_index.json
#### RFM95 version
* LoRaWAN - MCCI LoRaWAN LMIC library (by IBM, Matthjs Kooljman…) version 3.3.0

#### LoRa-E5 version
#### RFM95 or LoRa-E5 version with Wio Battery Chassis
* Battery Chassis - Sparkfun BQ27441

#### Later
Expand Down Expand Up @@ -102,6 +102,7 @@ Different setups needs to be performed in Libraries (so you know why I don't rea
#define WITH_LIPO // if defined the LiPo status & charging code is enable

```
If you have a DIY with Wio Battery Chassis uncomment this line at 3.1: `#define WITH_WIO_BATTERY_PACK 1`, and you can read the state of charge of the Wio Battery.

- The `key.h file contains the LoRaWAN credential. When all set to 0, the device will expect a serial port configuration as seen in the setup.

Expand Down
27 changes: 25 additions & 2 deletions ui.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,17 @@ void displayTitle() {
sprintf(title,"Wio LoRaWan Field Tester");
tft.drawString(title,(320-200)/2, 85, GFXFF);
sprintf(title,"Version %s (%s)", VERSION, model==LORAE5 ? "LoRaE5" : "RFM95");
tft.drawString(title,(320-180)/2, 115, GFXFF);
tft.drawString(title,(320-180)/2, 115, GFXFF);
#if WITH_WIO_BATTERY_PACK
sprintf(title,"With Wio Terminal Chassis Battery");
tft.drawString(title,(320-260)/2, 145, GFXFF);
#elif defined WITH_LIPO
sprintf(title,"With internal LiPo Battery");
tft.drawString(title,(320-190)/2, 145, GFXFF);
#else
sprintf(title,"No battery");
tft.drawString(title,(320-80)/2, 145, GFXFF);
#endif
sprintf(title,"WIO_FT_%02X%02X%02X%02X%02X", loraConf.deveui[3],loraConf.deveui[4], loraConf.deveui[5], loraConf.deveui[6], loraConf.deveui[7]);
tft.drawString(title,(320-160)/2, 180, GFXFF);
}
Expand Down Expand Up @@ -1152,7 +1162,20 @@ void refreshGpsDetails() {
sprintf(sTmp,"Hdop: %d.%d Sats: %d", gps.hdop/100,gps.hdop-100*(gps.hdop/100), gps.sats);
tft.drawString(sTmp,TXT_ALL_OFF_X,TXT_QUA_OFF_Y,GFXFF);

sprintf(sTmp,"Battery: %d mV (%d%%)",state.batVoltage, state.batPercent);
// switch text color based on battery state
if ( state.batPercent > 50 ) tft.setTextColor(TFT_GREEN);
else if ( state.batPercent > 20 ) tft.setTextColor(TFT_ORANGE);
else tft.setTextColor(TFT_RED);

#if WITH_WIO_BATTERY_PACK
sprintf(sTmp,"Battery(w):%d mV (%d%%)",state.batVoltage, state.batPercent);
#elif defined WITH_LIPO
// internal battery's voltage
sprintf(sTmp,"Battery(i):%d mV (%d%%)",state.batVoltage, state.batPercent);
#else
// I think anything shorter (like "no battery" or "no battery voltage") might be misleading
sprintf(sTmp, "No battery defined in build");
#endif
tft.drawString(sTmp,TXT_ALL_OFF_X,TXT_BAT_OFF_Y,GFXFF);
#ifdef DEBUGGPS
}
Expand Down