Arduino Projects - Circuit Construction First make the circuit connection as shown in fig1.1. The 1st Pin(Vcc) of Bluetooth(HC05) is connect to +5v of Arduino Uno and 10th pin(GND) to Arduino Uno
![ldr - Arduino analog pin doesn't read correctly without connecting to gnd and Vcc of arduino - Electrical Engineering Stack Exchange ldr - Arduino analog pin doesn't read correctly without connecting to gnd and Vcc of arduino - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/cL8ag.png)
ldr - Arduino analog pin doesn't read correctly without connecting to gnd and Vcc of arduino - Electrical Engineering Stack Exchange
![power - Does the VCC Output pin always give out a consistent 5V Voltage supply? What is the current output? - Arduino Stack Exchange power - Does the VCC Output pin always give out a consistent 5V Voltage supply? What is the current output? - Arduino Stack Exchange](https://i.stack.imgur.com/meuD5.jpg)
power - Does the VCC Output pin always give out a consistent 5V Voltage supply? What is the current output? - Arduino Stack Exchange
![23) The Tiny TFT that delivers: the 0.96 inch 80*160 TFT display with ST7735 driver for Arduino - Zonnestroompanelen in Nederland 23) The Tiny TFT that delivers: the 0.96 inch 80*160 TFT display with ST7735 driver for Arduino - Zonnestroompanelen in Nederland](https://thesolaruniverse.files.wordpress.com/2020/12/fig_01_96_dpi_tft_017_spi_st7735_80x160.png)
23) The Tiny TFT that delivers: the 0.96 inch 80*160 TFT display with ST7735 driver for Arduino - Zonnestroompanelen in Nederland
![Arduino Nano COM cannot read after plug 3.3 pin into ESP8266 - 01 - Installation & Troubleshooting - Arduino Forum Arduino Nano COM cannot read after plug 3.3 pin into ESP8266 - 01 - Installation & Troubleshooting - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/f/a/e/fae782043f959f006785b27c85b5056f858fa5bf.png)
Arduino Nano COM cannot read after plug 3.3 pin into ESP8266 - 01 - Installation & Troubleshooting - Arduino Forum
![SHORT USING Vcc LINE FOR BOTH HX711 AT 80Hz AND VOLTAGE SUPPLY - #21 by Grumpy_Mike - Project Guidance - Arduino Forum SHORT USING Vcc LINE FOR BOTH HX711 AT 80Hz AND VOLTAGE SUPPLY - #21 by Grumpy_Mike - Project Guidance - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/3X/5/a/5a496151d3f3e02e14499f05114f7fb8429d0ffc.png)
SHORT USING Vcc LINE FOR BOTH HX711 AT 80Hz AND VOLTAGE SUPPLY - #21 by Grumpy_Mike - Project Guidance - Arduino Forum
![How and which transistor to turn on or off a VCC rail (sim800l) - General Electronics - Arduino Forum How and which transistor to turn on or off a VCC rail (sim800l) - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/d/6/d/d6d2a325c7b2ae00b0307356693b7c15e5290af7.png)