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screen.cpp
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screen.cpp
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#include "screen.h"
#define BUFF_LEN 128
#define FONT_ONE_HEIGHT 8
#define FONT_TWO_HEIGHT 20
char chBuffer[BUFF_LEN];
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, 16, 15, 4);
void init_oled(const char *wifiSSID) {
u8g2.begin();
u8g2.setFont(u8g2_font_6x10_tr);
u8g2.setFontRefHeightExtendedText();
u8g2.setDrawColor(1);
u8g2.setFontPosTop();
u8g2.setFontDirection(0);
u8g2.clearBuffer();
sprintf(chBuffer, "%s", "Connecting to:");
u8g2.drawStr(64 - (u8g2.getStrWidth(chBuffer) / 2), 0, chBuffer);
sprintf(chBuffer, "%s", wifiSSID);
u8g2.drawStr(64 - (u8g2.getStrWidth(chBuffer) / 2), 31 - (FONT_ONE_HEIGHT / 2), chBuffer);
u8g2.sendBuffer();
}
void draw_screen(int grid_power, int solar_power, int derivation, int mqtt_status, int mqtt_reconnections) {
// Display connection stats.
// Clean the display buffer.
u8g2.clearBuffer();
u8g2.clearDisplay();
// Display the title.
sprintf(chBuffer, "%s", "[WiFi Stats]");
u8g2.drawStr(64 - (u8g2.getStrWidth(chBuffer) / 2), 0, chBuffer);
// Display the ip address assigned by the wifi router.
char chIp[81];
WiFi.localIP().toString().toCharArray(chIp, sizeof(chIp) - 1);
sprintf(chBuffer, "IP:%s", chIp);
u8g2.drawStr(0, FONT_ONE_HEIGHT * 1, chBuffer);
// Display the ssid of the wifi router.
sprintf(chBuffer, "SSID:%s RSSI:%d", WiFi.SSID(), WiFi.RSSI());
u8g2.drawStr(0, FONT_ONE_HEIGHT * 2, chBuffer);
//MQTT Status / Reconnections
sprintf(chBuffer, "MQTT: %d/%d", mqtt_status, mqtt_reconnections);
u8g2.drawStr(0, FONT_ONE_HEIGHT * 3, chBuffer);
//sprintf(chBuffer, "Power: %.0f Solar: %.0f", atof(power),atof(solar));
sprintf(chBuffer, "Grid:%d Solar:%d", grid_power, solar_power);
u8g2.drawStr(0, FONT_ONE_HEIGHT * 4, chBuffer);
//sprintf(chBuffer, "Solar: %.0f", atof(solar));
//u8g2.drawStr(0, FONT_ONE_HEIGHT * 6, chBuffer);
sprintf(chBuffer, "Derivation: %d%%", derivation);
u8g2.drawStr(0, FONT_ONE_HEIGHT * 5, chBuffer);
u8g2.sendBuffer();
}