diff --git a/ble/services/BleProtocolService.ts b/ble/services/BleProtocolService.ts
index 679e039..1fb2014 100644
--- a/ble/services/BleProtocolService.ts
+++ b/ble/services/BleProtocolService.ts
@@ -139,10 +139,12 @@ export class BleProtocolService {
         }
     }
 
-    public async send(deviceId: string, type: COMMAND_TYPES, data: object | ArrayBuffer, onProgress?: (progress: number) => void): Promise<void> {
+    public async send(deviceId: string, type: COMMAND_TYPES, data: object | ArrayBuffer | Uint8Array, onProgress?: (progress: number) => void): Promise<void> {
         let payload: Uint8Array;
         if (data instanceof ArrayBuffer) {
             payload = new Uint8Array(data);
+        } else if (data instanceof Uint8Array) {
+            payload = data;
         } else {
             const jsonStr = JSON.stringify(data);
             payload = new Uint8Array(Buffer.from(jsonStr));