diff --git a/libs/core/screen.ts b/libs/core/screen.ts
index a3b3642d..61f6690e 100644
--- a/libs/core/screen.ts
+++ b/libs/core/screen.ts
@@ -215,25 +215,32 @@ namespace brick {
     //% blockId=brickPrintPorts block="print ports"
     //% weight=1 group="Screen"
     export function printPorts() {
+        const col = 44;
         clearScreen();
 
+        function scale(x: number) {
+            if (Math.abs(x) > 1000) return Math.round(x / 100) / 10 + "k";
+            return ("" + (x >> 0));
+        }
+
         // motors
         const datas = motors.getAllMotorData();
         for(let i = 0; i < datas.length; ++i) {
             const data = datas[i];
             if (!data.actualSpeed && !data.count) continue;
-            const x = i * 52;
-            print(`${data.actualSpeed}%`, x, brick.LINE_HEIGHT)
-            print(`${data.count}>`, x, 2 * brick.LINE_HEIGHT)
+            const x = i * col;
+            print(`${scale(data.actualSpeed)}%`, x, brick.LINE_HEIGHT)
+            print(`${scale(data.count)}>`, x, 2 * brick.LINE_HEIGHT)
+            print(`${scale(data.tachoCount)}|`, x, 3 * brick.LINE_HEIGHT)
         }
 
         // sensors
         const sis = sensors.internal.getActiveSensors();
         for(let i =0; i < sis.length; ++i) {
             const si = sis[i];
-            const x = (si.port() - 1) * 52;
+            const x = (si.port() - 1) * col;
             const v = si._query();
-            print(`${v}`, x, 9 * brick.LINE_HEIGHT)
+            print(`${scale(v)}`, x, 9 * brick.LINE_HEIGHT)
         }
     }
 }
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