torelogistics.blogg.se - Hard disk led clock

Hard disk led clock for android#
Hard disk led clock android#
Hard disk led clock software#
Hard disk led clock Pc#

The hand points at a scale indicating the electric current The coil twists, pushing against the spring, and moves the pointer. This field acts against the permanent magnet. When a direct current (DC) flows through the coil, the coil generates a magnetic field. A tiny torsion spring pulls the coil and pointer to the zero position. The coil is attached to a thin pointer that traverses a calibrated scale. The D'Arsonval/Weston galvanometer used today is constructed with a small pivoting coil of wire in the field of a permanent magnet. It is an analog electromechanical transducer that produces a rotary deflection of some type of pointer in response to electric current flowing through its coil in a magnetic field.

Wikipedia tells us that a moving-coil galvanometer is a type of ammeter: an instrument for detecting and measuring electric current. Time should be kept in case of a power failure.

Hard disk led clock software#

a USB interface should provide access to a software to tune and setup the device (plug & play).

Hard disk led clock Pc#

the disk should be powered by any 5V coming either from a USB charger or directly from a PC USB host.the device should be automatic on startup.

the rotating disk should indicate the hours.

the head arm should indicate the minutes.

as little visible modifications on the disk.

I decided to keep as much as possible of the original HDD to convert it into a working clock. It's a precise mechanism with a shining almost perfect mirror. We will see why later !Ī Hard disk drive is, by itself, a nice "piece of art". Almost any HDD will work but one important thing is mandatory : you must have at least two platters into the disk. Let's start by choosing the right disk model.

Hard disk led clock android#

This project was published on my Website ten years ago, but I will now publish the whole design, the source code, everything in open source and open hardware.Īnd, If I am not too lazy, I will as well try to port it on an ESP32 MCU and design an android App to get rid of the PC App which is a bit outdated today! If a USB HDD is not recognized or cannot be registered even when it is connected, refer to Cannot recognize or register the USB HDD for recording.Now let's see how all this works and how you can do your own "HDD clock". NOTE: When recording, connect to the port labelled HDD REC. For the maximum output of each port, refer to the labels at the back of the TV or the manual. USB2.0 port: 500 mA MAX or 800 mA MAX.USB port types and maximum output (current):.What are the specifications of compatible HDDs? USB HDDs with capacities that are too small (less than 32 GB) cannot be used for recording purposes.) Some USB HDDs cannot be used for recording purposes. *4: A USB HDD up to 16 TB can be connected, but the usable capacity is restricted to 4 TB. *3: The maximum size of a content file that can be saved in the USB HDD is restricted to 4 GB.

Hard disk led clock for android#

For Android OS7 (N) or later, you can use a USB HDD that is 256 GB or larger, but the usable capacity is restricted to 256 GB.

For Android OS6 (M), use a USB HDD that is 256 GB or smaller.

This function is available in Android™ OS6 (M) or later. *2: Max hard disk drive size for storage: The USB HDD must be registered to the Android TV as device storage (to be formatted for storage). *1: Max hard disk drive size for recording: The USB HDD must be registered to the Android TV for recording (to be formatted for recording). Important information to note on recording and content size Max hard disk drive size for storage (*2) Max hard disk drive size for recording (*1) What are the supported file system and maximum drive sizes? File System However, Sony does not guarantee that they will operate. USB HDDs that can be used with Sony’s Android TVs must meet the following conditions.

For a BRAVIA TV other than an Android TV, refer to What types of USB HDDs are compatible with my TV (other than Android TV)?.

IMPORTANT: This page introduces compatible information regarding USB HDD drives for Sony's Android TV.