Adafruit TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout – 帯觸控模組 美國原廠

商品說明

TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout – With Touch 產品介紹

適合螢幕：五吋、七吋
這是一個迷你HDMI解碼板！如此小巧簡單，您可以將此板用作TTL顯示器的一體化顯示驅動器，或者可能將HDMI / DVI視頻解碼為其他項目。此板包括用於解碼視頻的TFP401，以及用於觸摸版本的AR1100 USB電阻式觸摸屏驅動器。

TFP401是TI的強大DVI / HDMI解碼器。它可以採用未加密的視頻並輸出原始的24位彩色像素數據 – 不支持HDCP！它將解碼25-165MHz像素時鐘的任何分辨率，基本上高達1080p。我們已經將此板用於800×480顯示器，因此我們沒有專門針對更高分辨率進行測試。我們添加了一堆支持電路，如背光驅動器，並將其配置為運行基本的TTL顯示面板，例如我們在商店中使用的那些

您甚至可以從USB端口為顯示器和解碼器供電。例如，使用5“800×480顯示屏和50mA背光電流，電流消耗總計為500mA。通過以半亮度（25mA）運行背光，可以將亮度降低至370mA。關閉背光，解碼器和顯示器本身250mA。如果你想要更多的背光控制，有一個PWM輸入，連接到你的微控制器或其他PWM輸出，你可以根據需要連續調暗背光

我們有兩個版本，一個是視頻，一個是視頻+觸摸。這是帶觸摸的版本！將其與具有電阻式觸摸覆蓋層的屏幕配對。然後USB端口充當電源和數據，觸摸屏看起來像USB鼠標。我們已經在Mac，Windows和Debian Linux（Raspberry Pi上的Raspbian）上成功測試了它。其他Linux發行版可能也可能不起作用，但如果你正在運行Linux，你可能已經習慣了。

該驅動器專為我們的40引腳TTL顯示器設計，是一款小巧易用的顯示驅動器。特別是，我們建議將其與具有DVI / HDMI輸出的單板計算機（或台式機/筆記本電腦！）一起使用，如Raspberry Pi或BeagleBone Black。您可以通過USB為驅動程序供電，然後通過HDMI端口為其提供視頻。這是一個非常小的板，非常適合塞入外殼。它可以驅動我們的4.3“，5.0”或7.0“顯示器，但我們真的只推薦5”或7“800×480，因為有些電腦不喜歡4.3”的低分辨率而且TFP401不包含視頻縮放器，它會沒有調整大小/縮小視頻！

我們以800×480分辨率EDID發送此電路板，因此它將以該分辨率自動檢測。對於高級用戶，可以使用我們的示例Arduino代碼重新編程EDID。或者，對於使用Linux的計算機，您始終只需將分辨率強制為您連接的任何顯示器。

*出貨不含樹莓派開發板及觸控螢幕

技術細節

• 尺寸：51mm x 68mm x 8.5mm / 2“x 2.7”x 0.3“
• 重量：18.7克
• 教程中提供的數據表，CAD和Fritzing文件

學習

AR1100電阻式觸摸屏控制器指南
使用AR1100 USB觸摸控制器進行校準

Adafruit TFP401 HDMI / DVI解碼器至40針TTL顯示器
將高速HDMI視頻解碼為小型顯示器

Adafruit 5“和7”800×480 TFT HDMI背包
為您的下一個項目帶來一個漂亮的緊湊型HDMI監視器

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It’s a mini HDMI decoder board! So small and simple, you can use this board as an all-in-one display driver for TTL displays, or perhaps decoding HDMI/DVI video for some other project. This breakout features the TFP401 for decoding video, and for the touch version, an AR1100 USB resistive touch screen driver.

The TFP401 is a beefy DVI/HDMI decoder from TI. It can take unencrypted video and pipe out the raw 24-bit color pixel data – HDCP not supported! It will decode any resolution from 25-165MHz pixel clock, basically up to 1080p. We’ve used this breakout with 800×480 displays, so we have not specifically tested it with higher resolutions. We added a bunch of supporting circuitry like a backlight driver and configured it for running basic TTL display panels such as the ones we have in the shop

You can even power the display and decoder from a USB port. For example, with a 5″ 800×480 display and 50mA backlight current, the current draw is 500mA total. You can reduce that down  370mA by running the backlight at half-brightness (25mA). With the backlight off, the decoder and display itself draws 250mA. If you want more backlight control, there’s a PWM input, connect that to your microcontroller or other PWM output and you can continuously dim the backlight as desired

We have two versions, one is video only and one is video+touch. This is the version with touch! Pair it with a screen that has a resistive touch overlay. The USB port then acts as both power and data, with the touch screen appearing like a USB mouse. We’ve tested it sucessfully on Mac, Windows, and Debian Linux (Raspbian on a Raspberry Pi). Other Linux distributions may or may not work, but if you’re running Linux you’re probably used to that.

This driver is designed specifically as a small and easy to use display driver for our 40-pin TTL displays. In particular, we suggest it for use with single board computers (or desktop/laptops!) with DVI/HDMI output like the Raspberry Pi or BeagleBone Black. You can power the driver over USB and then feed it video via the HDMI port. It’s a very small board so great for tucking into an enclosure. It can drive our 4.3″, 5.0″ or 7.0″ displays but we really only recommend the 5″ or 7″ 800×480 as some computers do not like the low resolution of the 4.3″ and the TFP401 does not contain a video scaler, it will not resize/shrink video!

We ship this board with an 800×480 resolution EDID so it will be auto-detected at that resolution. For advanced users, the EDID can be reprogrammed using our example Arduino code. Or, for computers that use linux, you can always just force the resolution to whatever display you have connected.

This is just a decoder breakout, a display is not included!

TECHNICAL DETAILS

• Dimensions: 51mm x 68mm x 8.5mm / 2″ x 2.7″ x 0.3″
• Weight: 18.7g
• Datasheets, CAD and Fritzing files available from tutorial