updated sample/multi support in lcd

packages/drivers/src/grovergblcd.ts

@@ -148,10 +148,31 @@ export class GroveRGBLCD extends I2CDriver {
 
     async render(message: string) {
         await this.clear()
-        if (message?.length > 0)
+        if (message?.length > 0) {
+            let col = 0
+            let row = 0
             for (let i = 0; i < message.length; ++i) {
-                await this.write(message.charCodeAt(i))
+                const c = message.charCodeAt(i)
+                if (c === 10) { // \n
+                    col = 0
+                    row += 1
+                    await this.newLine(col, row)
+                }
+                else if (c === 13) {
+                    // skip
+                } else {
+                    // in bounds
+                    if (col < this.columns && row < this.lines)
+                        await this.write(c)
+                    col += 1
+                }
             }
+        }
+    }
+
+    private async newLine(col: number, row: number) {
+        col = row === 0 ? col | 0x80 : col | 0xc0
+        await this.writeBuf(Buffer.from([0x80, col]))
     }
 }
 

packages/sampleprj/src/maingrovelcd16x2.ts

@@ -1,16 +1,23 @@
-import "@dsboard/seeed_xiao_esp32c3"
-import * as ds from "@devicescript/core"
 import {
-    XiaoGroveShield,
     startGroveRGBLCD16x2,
     startBME680,
+    XiaoGroveShield,
 } from "@devicescript/drivers"
+import { ValueDashboard } from "@devicescript/runtime"
+
+const shield = new XiaoGroveShield()
+const { temperature, humidity } = await startBME680({
+    address: 0x76,
+})
+const screen = await startGroveRGBLCD16x2()
 
-const board = new XiaoGroveShield()
+const dashboard = new ValueDashboard(screen, {
+    temp: { digits: 1, unit: "C" },
+    humi: { digits: 0, unit: "%" },
+})
 
-const { temperature } = await startBME680()
-const lcd = await startGroveRGBLCD16x2()
 setInterval(async () => {
-    const temp = Math.round(await temperature.reading.read())
-    await lcd.message.write(`temp: ${temp}C`)
+    dashboard.values.temp = await temperature.reading.read()
+    dashboard.values.humi = await humidity.reading.read()
+    await dashboard.show()
 }, 1000)