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  • ESP32 With Integrated OLED (WEMOS/Lolin) - Getting Started Arduino Style

    I can upload the code to the board,but only got this on my serial :ets Jun 8 2016 00:22:57rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)configsip: 0, SPIWP:0xeeclk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00mode:DIO, clock div:2load:0x3fff0018,len:4load:0x3fff001c,len:812load:0x40078000,len:0load:0x40078000,len:11404entry 0x40078a28nothing on my OLED displayHere's the init code :// Initialize the OLED display using Wire librarySSD1306 display(0x3c, D3, D5);// SH1106 display(0x3c, D3, D5);#define DEMO_DURATION 3000typedef void (*Demo)(void);int demoMode = 0;int counter = 1;void setup() { Serial.begin(115200); Serial.println(); Serial.println(); // Initialising the UI will init the display too. display.init(); display.flipScreenVertically(); displ...

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    I can upload the code to the board,but only got this on my serial :ets Jun 8 2016 00:22:57rst:0x1 (POWERON_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT)configsip: 0, SPIWP:0xeeclk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00mode:DIO, clock div:2load:0x3fff0018,len:4load:0x3fff001c,len:812load:0x40078000,len:0load:0x40078000,len:11404entry 0x40078a28nothing on my OLED displayHere's the init code :// Initialize the OLED display using Wire librarySSD1306 display(0x3c, D3, D5);// SH1106 display(0x3c, D3, D5);#define DEMO_DURATION 3000typedef void (*Demo)(void);int demoMode = 0;int counter = 1;void setup() { Serial.begin(115200); Serial.println(); Serial.println(); // Initialising the UI will init the display too. display.init(); display.flipScreenVertically(); display.setFont(ArialMT_Plain_10);

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  • arick commented on Nevwe's instructable Wireless Power Transmitter and Receiver1 year ago
    Wireless Power Transmitter and Receiver

    how much power can it generate ?

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  • arick commented on frapedia's instructable Step-up Booster1 year ago
    Step-up Booster

    How can I get 220V 0.2A on the output ?

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  • arick commented on frapedia's instructable Step-up Booster1 year ago
    Step-up Booster

    how can I get 0.1A with 220V ?

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  • Small Transformer Making Procedure - For low power PCBs

    ​How to calculate winding with the ratio between the bobbin diameter,number of turn and voltage ?For example 220V primary and I have a small bobbin with 3cm diameter and Np = 45T....how many winding do I need for it ?

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