diff --git a/doc/custom_scale/hc_10/HC_10_Manual.pdf b/doc/custom_scale/hc_10/HC_10_Manual.pdf
new file mode 100644
index 00000000..1cb15c22
Binary files /dev/null and b/doc/custom_scale/hc_10/HC_10_Manual.pdf differ
diff --git a/doc/custom_scale/parts/smart_bluetooth_back.jpg b/doc/custom_scale/parts/smart_bluetooth_back.jpg
new file mode 100644
index 00000000..12e271fb
Binary files /dev/null and b/doc/custom_scale/parts/smart_bluetooth_back.jpg differ
diff --git a/doc/custom_scale/parts/smart_bluetooth_front.jpg b/doc/custom_scale/parts/smart_bluetooth_front.jpg
new file mode 100644
index 00000000..654e0db0
Binary files /dev/null and b/doc/custom_scale/parts/smart_bluetooth_front.jpg differ