jonas/ESP32-ExposureAPI-Scanner
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Improved Bootscreen

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jonas
2020-06-22 21:33:38 +02:00
parent e5adb13921
commit 5153ff1fe6
2 changed files with 32 additions and 13 deletions
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37
ESP32-ExposureAPI-Scanner.ino
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@@ -2,12 +2,14 @@
#include <BLEDevice.h>
#include <BLEScan.h>
#include <BLEAdvertisedDevice.h>
#include "Tone32.h"
#include <Adafruit_GFX.h>
#include <Wire.h>
#include <SSD1306Wire.h>
#include <SPI.h>
#include "Tone32.h"
//#include "SparkLine.h"
// ssd1306 display
SSD1306Wire display(0x3c, 5, 4);
#define SSD1306_128_64
@@ -33,6 +35,25 @@ BLEScan *scanner;
std::map<std::string, unsigned long> seenNotifiers;
/**
* UI related functions
*/
void displayBootscreen() {
Serial.println("Show bootscreen");
display.clear();
display.setColor(WHITE);
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.fillRect(4, 8, 121, 24);
display.drawRect(4, 32, 121, 19);
display.setFont(ArialMT_Plain_10);
display.drawString(64, 35, "Exposure API Scanner");
display.setColor(BLACK);
display.setFont(ArialMT_Plain_24);
display.drawString(64, 7, "COVID-19");
display.display();
}
/**
* Called when a new exposure notifier is seen.
*/
@@ -95,13 +116,7 @@ void setup() {
// Initialize display
Serial.println("Init Display");
display.init();
display.clear();
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.setFont(ArialMT_Plain_24);
display.drawString(64, 10, "COVID-19");
display.setFont(ArialMT_Plain_10);
display.drawString(64, 32, "Exposure API Scanner");
display.display();
displayBootscreen();
// Initialize scanner.
BLEDevice::init("ESP");
@@ -130,9 +145,11 @@ void loop() {
Serial.printf("Show data on SSD1306 display");
display.clear();
display.setColor(WHITE);
display.drawRect(0, 0, 128, 64); // UI Outline
display.fillRect(0, 0, 128, 14);
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.setFont(ArialMT_Plain_10);
display.drawRect(0, 0, 128, 64); // UI Outline
display.fillRect(0, 0, 128, 14); // UI Header
display.drawString(64, 0, "Exposure API Counter");
if (seenNotifiers.size() == 1) {
display.drawString(64, 48, "Device in last " + String(FORGET_AFTER_MINUTES) +"min.");
}

8
README.md
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@@ -2,10 +2,9 @@
This repository contains code to scan the official COVID19 Exposure API with an ESP32 using Bluetooth LE and shows a counter on an SSD1306 OLED display.
![Early stage prototype](img/esp32_scanner.jpg)
![Device Image](img/esp32_scanner.jpg)
![Device Image with case](img/esp32_scanner_case.jpg)
![Device with case](img/esp32_scanner_case.jpg)
Code is based on [BLE Exposure Notification Beeper](https://github.com/kmetz/BLEExposureNotificationBeeper) which uses an LED and a piezo buzzer to notify about new detected devices but would not show the device count so I added the display part to it. You can still use the LED/Buzzer because this part is not touched in the code. In case you want to do so use this wiring:
@@ -40,6 +39,9 @@ In case you have an [Anycubic i3 Mega](https://www.anycubic.com/products/anycubi
## Used Libraries
+ [ESP8266-oled-ssd1306 by ThingPulse](https://github.com/ThingPulse/esp8266-oled-ssd1306)
+ [ESParkline](https://github.com/0xPIT/ESParklines)
+ [Adafruit-GFX-Library](https://github.com/adafruit/Adafruit-GFX-Library)
+ [FixedPoints](https://github.com/Pharap/FixedPointsArduino)
## To do
- [ ] [Sparklines](https://github.com/0xPIT/ESParklines)