New SenseCraft HMI release v1.2.0 (=screen designer for Seeed e-paper displays) and firmware v1.0.8: release notes.
Short: More templates, more third-party data integrations, more out-of-the-box logic, inproved api connections (not every Homey field has to be defined with a separate api connection, but still room for improvements).
In the meantime, there are several new template integrations (which I haven’t tried myself), such as Google Calendar:
List with more templates/integrations.
New article about these e-paper displays on Dutch tech site Tweakers.
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The latest version of the SenseCraft HMI screen designer allows you to send data from Homey to the e-paper screen. This version also includes many new features (release notes here) for creating screens.
I created a Homey script that collects all data needed from various devices. With a single POST command, all the data is available as fields in the screen designer.
It’s even possible to generate a chart (I use the free and fast Quickchart generator in Homey script) and send the resulting URL to the screen. The chart below isn’t a Power-by-the-Hour energy prices chart (that didn’t look nice on the screen), but was generated with Quickchart.
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Hi Amersfoort, good work! Can you share your posting homey script?
This Homey script gets all data needed for the 2 Seeed SenseCraft HMI screens below (except the graph).
const url = 'https://sensecraft-hmi-api.seeed.cc/api/v1/user/device/push_data';
const apiKey = 'xxxxxxxxxx'; //fill Seeed api key
//function: get capability from device
const getVal = (dev, cap, unit = "", decimals = 1) => {
try {
if (!dev) return "N/B";
const val = dev.makeCapabilityInstance(cap).value;
if (val === null || val === undefined) return "N/B";
if (typeof val === 'number') {
return val.toFixed(decimals).replace('.', ',') + (unit ? ` ${unit}` : "");
}
return val + (unit ? ` ${unit}` : "");
} catch (e) {
return "N/B";
}
};
// 1. Get base data Homey
const devices = await Homey.devices.getDevices({ $skipCache: true });
const rawVariables = await Homey.logic.getVariables();
const variablesArray = Object.values(rawVariables);
const allDevs = Object.values(devices);
// 2. Helper for variables (Logic)
const getVar = (name) => {
const v = variablesArray.find(v => v.name === name);
return v ? v.value : null;
};
// 3. Get devices based on name
const d = {
hw: allDevs.find(i => i.name === 'Elektra en Gas'),
water: allDevs.find(i => i.name === 'Water'),
enphase: allDevs.find(i => i.name === 'Enphase VD'),
zonneplan: allDevs.find(i => i.name === 'Zonneplan p1'),
shelly: allDevs.find(i => i.name === 'Shelly HT Gen3'),
knmi: allDevs.find(i => i.name === 'KNMI'),
weer: allDevs.find(i => i.name === 'Weerstation'),
regen: allDevs.find(i => i.name === 'Regenmeter'),
prijzen: allDevs.find(i => i.name === 'Elektra dagprijzen')
};
// 4. Build data object for Seeed HMI
const data = {
// --- ELEKTRA ---
ElektraVermogenNu: getVal(d.hw, 'measure_power', 'W', 0),
ElektraVerbruikVandaag: getVal(d.hw, 'meter_power.daily', 'kWh', 1),
ElektraSolarNu: getVal(d.enphase, 'measure_power', 'W', 0),
ElektraSolarVandaag: getVal(d.enphase, 'meter_power', 'kWh', 1),
ElektraTerugleveringVandaag: getVal(d.zonneplan, 'meter_power.daily_production', 'kWh', 1),
ElektraKostenVandaag: "€ " + getVal(d.zonneplan, 'meter_power.daily_cost', '', 2),
// --- GAS & WATER ---
GasVerbruikNu: getVal(d.hw, 'measure_gas', 'm3', 1),
GasVandaag: getVal(d.zonneplan, 'meter_gas.daily', 'm3', 1),
GasKostenVandaag: "€ " + getVal(d.zonneplan, 'meter_gas.daily_price', '', 2),
// Water convert m3 to liter
WaterVandaag: (() => {
try {
const m3 = d.water.makeCapabilityInstance('meter_water.daily').value;
return (m3 * 1000).toFixed(0).replace('.', ',') + " L";
} catch (e) { return "0 L"; }
})(),
// --- WEER BINNEN ---
WeerTempHuiskamer: getVal(d.shelly, 'measure_temperature', '°C', 1),
WeerLuchtvochtigheidHuiskamer: getVal(d.shelly, 'measure_humidity', '%', 1),
// --- WEER BUITEN ---
WeerTempBuiten: getVal(d.weer, 'measure_temperature', '°C', 1),
WeerGevoelstemp: getVal(d.weer, 'measure_temperature.feelsLike', '°C', 1),
WeerstationTempMin: (getVar("Minimum temperatuur") || 0).toFixed(1).replace('.', ',') + " °C",
WeerstationTempMax: (getVar("Maximum temperatuur") || 0).toFixed(1).replace('.', ',') + " °C",
// KNMI & Omgevingssensoren
WeerZonOp: getVal(d.knmi, 'sun_up'),
WeerZonOnder: getVal(d.knmi, 'sun_down'),
WeerNuOmschrijving: getVal(d.knmi, 'recap'),
WeerVerwachting: getVal(d.knmi, 'expected'),
WeerRegenNu: "nu: " + getVal(d.regen, 'measure_rain.rate', 'mm/u', 1),
WeerRegenVandaag: getVal(d.regen, 'measure_rain.daily', 'mm', 1),
WeerLuchtvochtigheid: getVal(d.weer, 'measure_humidity', '%', 0),
WeerKNMIVerwachtingMinTemp: getVal(d.knmi, 'expected_today_min_temp', '°C', 0),
WeerKNMIVerwachtingMaxTemp: getVal(d.knmi, 'expected_today_max_temp', '°C', 0),
WeerWindSnelheid: getVal(d.weer, 'measure_wind_strength', 'km/u', 0),
WeerWindRichting: getVal(d.weer, 'measure_wind_direction'),
WeerLuchtdruk: getVal(d.weer, 'measure_pressure', 'hPa', 0),
WeerZonKans: getVal(d.knmi, 'expected_today_sunshine', '%', 0),
WeerZonUV: getVal(d.weer, 'measure_ultraviolet', 'UVI', 0),
WeerZonLux: getVal(d.weer, 'measure_luminance', 'lx', 0),
// URLs
ElektraprijzenUrl: getVar("StroomGrafiekURL") || ""
};
// 5. Get energy prices per hour (8 hours)
const huidigeTijd = new Date();
const startUur = huidigeTijd.getHours();
for (let i = 0; i <= 7; i++) {
const uur = (startUur + i) % 24;
const prijs = getVal(d.prijzen, 'meter_price_h' + i, '', 3);
data[`ElektraPrijsTijd${i}`] = `${uur} uur: € ${prijs}`;
}
// 6. Generate update time
data.DatumTijd = "weerupdate: " + huidigeTijd.toLocaleDateString('nl-NL', {
weekday: 'long', day: 'numeric', month: 'long', hour: '2-digit', minute: '2-digit'
}).replace(',', '') + " uur";
// 7. Send data to Seeed API
try {
const response = await fetch(url, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'api-key': apiKey
},
body: JSON.stringify({
device_id: xxxxxxx, //fill in Seeed device id
data: data
})
});
if (!response.ok) {
const errText = await response.text();
throw new Error(`HTTP ${response.status}: ${errText}`);
}
log('Succes: Data verzonden naar Seeed HMI');
return true;
} catch (err) {
console.error('Script error:', err.message);
return false;
}
