3.3 v 5v
但是在連上WiFi 之前還有一個工作要完成: 5V-3.3V 位準轉換. Arduino 一般工作在5V, 它的TX/RX 接腳不能直接與ESP8266 的TX/RX 相連, 否則可能會使ESP8266 燒毀. 雖然我的Arduino Pro Mini 可以在3.3V 工作, 但考量DHT11 或PIR 感測器都是5V 運作的, 所以還是做個5V-3.3V 位準轉換器來介接好了.,
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 3.3 v 5v 相關參考資料
電源中的+12V+5V+3.3V都給哪些硬體供電？ - 每日頭條
現在隨便翻出一個正規的PC電源，我們都可以在銘牌上看到其+12V、+3.3V、+5V、-12V以及+5VSB的輸出規格，這5個電壓同時也是PC主機內部各個硬體所需要使用的供電電壓。不過並不是每一個硬體都會用到這些電壓，實際上它們的需要是各有不同的，因此我們就先來扒一扒關於PC內部主要硬體即CPU、主板、 ... https://kknews.cc 小狐狸事務所: 用MOFFET 2N7000 做5V 與3.3V 位準轉換
但是在連上WiFi 之前還有一個工作要完成: 5V-3.3V 位準轉換. Arduino 一般工作在5V, 它的TX/RX 接腳不能直接與ESP8266 的TX/RX 相連, 否則可能會使ESP8266 燒毀. 雖然我的Arduino Pro Mini 可以在3.3V 工作, 但考量DHT11 或PIR 感測器都是5V 運作的, 所以還是做個5V-3.3V 位準轉換器來介接好了. http://yhhuang1966.blogspot.co 「3.3 v 5v」的圖片搜尋結果
:// 電源供應器- 請問硬碟是吃3.3V、5V還是12V? - 電腦討論區- Mobile01
小弟最近要組新的電腦，目前在挑POWER看了很多版上的文章未來有能會裝到八顆硬碟因此本想挑高瓦數的電源後來發現3.3V...(電源供應器第1頁) https://www.mobile01.com Logic Levels - learn.sparkfun.com
For an active high pin, you connect it to your HIGH voltage (usually 3.3V/5V). For example, let's say you have a shift register that has a chip enable pin, CE. If you see the CE pin anywhere in th... https://learn.sparkfun.com level shifting - Step up 3.3V to 5V for digital IO - Electrical ...
Since Dave Tweed has pointed out the flaw in the other answer, I have basically copied my answer to Single transistor level up shifter ... Note also the interesting solution by Nicolas D in the quest... https://electronics.stackexcha How do I use a 5V relay with a 3.3V arduino pro mini? - Electrical ...
There are an awfull lot of ways to connect a 5V device to a 3.3V output pin. //edited The original/accepted answer can be found below. This edited part should be an improved version of the original o... https://electronics.stackexcha which is better? 5V or 3.3V as the supply voltage - Electrical ...
Well there is also the noise susceptibility of your circuit, which will be lower if you use 5V (you need higher noise levels to disturb a 5V circuit). Some components have very different analog perfo... https://electronics.stackexcha What if I mix 3.3V and 5V? » JeeLabs
Welcome to the new weekly What-If series, also available via the Café wiki. As you probably know, mixing 3.3V logic with 5V logic is usually a bad idea, but why and what if you need to do it anyway? ... https://jeelabs.org Why 3.3V and not 5V? - Hardware - Particle
I was wondering why 3.3v max input was decide on when so many sensors are 5 volt. I don't know much about 3.3 vs 5 volt, the one thing I constantly keep running into is having to divide voltages ... https://community.particle.io |