The software design for multifunction, color-variable led matrix display controlled by a single board computer is described.

本文介绍了单板计算机控制的LED多功能变色矩阵显示装置软件设计方法。

youdao

It can be used to measure the luminous intensity, forward voltage, reverse current of each luminous dot in all kinds of LED luminous dot matrix.

能测试各种LED发光矩阵每个发光元的发光强度，正向压降和反向电流。

youdao

Another significant advantage: this projector USES very little energy, requiring on average 30% less current than the matrix - or LED-based technology currently available on the market.

卫星投影仪的另一个优势是耗电少，比目前市场流行的matrix或LED技术的投影仪平均降低30%。

youdao

"Gently rising out of the sidewalk", in the words of its creators, this 12-foot behemoth includes a stack of LED matrix screens, similar to those found on Times Square billboards.

BBC: New York's phone boxes get new lease of life

This model upgrades to FocaLight LED backlighting - claims full matrix LED for better uniformity.

ENGADGET: Live from Toshiba's CES press conference