TINKER PIEDESIGN IN INDIA

Light meter

A BH1750 measures light in lux, shown big on an OLED screen with a bar.

Sensor projectsBH1750OLED

Open in TinkerPie Studio

What you need

Wiring

BH1750 and OLED → SENSOR ports.

Step by step

  1. Open Light meter in TinkerPie Studio. It opens as blocks.
  2. Wire it: BH1750 and OLED → SENSOR ports.
  3. Press Run to try it in the simulator. Use the sliders and buttons under the board picture to test it.
  4. Connect TinkerPie with a USB-C cable in Chrome or Edge, press Connect, then Download. Or, with Studio started from the TinkerPie launcher on your computer, open the Arduino C++ tab and press Build & Flash.
  5. Change something: a colour, a number, a sound. Then run it again.

The code

This is the program the blocks make. The same program runs in the simulator and on the board.

JavaScript
var lux;

basic.forever(function () {
  lux = sensors.lightLux();
  oled.showText('Light (lux)', 0);
  oled.showBig(lux, 2);
  oled.bar(lux, 1000, 6);
  basic.pause(300);
});
Arduino C++ (TinkerPie library)
// Light meter
// Arduino C++ made by TinkerPie Studio from the blocks. Board: TinkerPie V1 (ESP32-S3).
// Arduino IDE: install the TinkerPie library (Studio menu > Arduino library), then Tools > Board > ESP32S3 Dev Module,
// USB CDC On Boot: Enabled, Flash Size: 16MB, Partition Scheme: 16M Flash (3MB APP/9.9MB FATFS), PSRAM: OPI PSRAM.
#include <TinkerPie.h>
using namespace tinkerpie;

double lux = 0;

void setup() {
  tinkerpie::begin();
  basic::forever([]() {
    lux = sensors::lightLux();
    oled::showText("Light (lux)", 0);
    oled::showBig(lux, 2);
    oled::bar(lux, 1000, 6);
    basic::pause(300);
  });
}

void loop() {
  tinkerpie::loop();   // runs the forever blocks and handles events
}

More projects like this

Thirsty plant alarmA soil moisture sensor tells TinkerPie when the plant needs water: a sad face and a beep.Sensor projectsUltrasonic rulerMeasures how far your hand is, in centimetres, with an HC-SR04 sonar.Sensor projectsSmart dustbin lidWave over the bin: a servo opens the lid for two seconds, then closes it.Sensor projectsIntruder alarmA PIR motion sensor sees someone moving: red flashes and a siren.Sensor projectsWeather station on OLEDA DHT11 measures temperature and humidity; an OLED screen shows them with a bar.Sensor projectsRoom climate on an LCDAn AHT20 sensor and a 16 × 2 LCD. The matrix smiles when the room is comfortable.Sensor projects