Apple Pencil
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| Developer | Apple Inc. |
|---|---|
| Manufacturer | Foxconn |
| Type | Digital stylus |
| Release date | November 11, 2015 |
| Introductory price | US$99 |
| System-on-chip used | 32-bit RISC ARM-based Cortex-M3 |
| CPU | ST Microelectronics STM32L151UCY6 Ultra-low-power MCU @ 32 MHz |
| Memory | 64‐Kbyte Flash |
| Input | Lightning Connector, Bluetooth 4.1 |
| Power | Recyclable Rechargeable 3.82 V, 0.329 Wh lithium-ion battery |
| Dimensions | Length: 6.92 inches (175.7 mm) measured from tip to cap Diameter: 0.35 inch (8.9 mm) |
| Weight | 0.73 ounce (20.7 grams) |
| Website | www |
The Apple Pencil is a digital stylus pen that works as an input device for the iPad Pro tablet computer and was designed by Apple Inc. It was announced on September 9, 2015, alongside the iPad Pro and released in conjunction with it on November 11, 2015.
The Apple Pencil features pressure sensitivity and angle detection. Encased in a plastic housing is a Bluetooth device that can communicate simultaneously with the screen and the system underneath it. The Pencil can detect force, allowing, for example, darker or lighter strokes in a drawing app depending on how hard the user presses.
The Apple Pencil was designed for low latency to enable smooth inking on the screen. The iPad Pro also allows simultaneous use of an Apple Pencil and one's fingers, while rejecting input from the user's palm.
One end of the Apple Pencil has a magnetic removable cap. Underneath this cap is a Lightning connector, which allows the Pencil's battery to be recharged via the iPad Pro's Lightning port itself. The initial charge lasts about 12 hours, but 15 seconds plugged into the Lightning connector of the iPad Pro provides sufficient power for 30 minutes of use. The user can also use the included Lightning female-to-Lightning female adapter to charge via a standard Lightning cable instead.
The Apple Pencil utilizes an ST Microelectronics STM32L151UCY6 Ultra-low-power 32-bit RISC ARM-based Cortex-M3 MCU running at 32 MHz with 64 KB of flash memory, a Bosch Sensortech BMA280 3‐Axis Accelerometer and a Cambridge Silicon Radio (Qualcomm) CSR1012A05 Bluetooth Smart IC for its Bluetooth connection to the iPad Pro. It is powered by a recyclable rechargeable 3.82 V, 0.329 Wh lithium-ion battery. There is also the antenna and pressure and angle sensors near the tip, which is replaceable and sold in packs of four.
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Wikipedia