Raspberry Pi
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Raspberry Pi
A complete ARM GNU/Linux computer for $25.
(also covering Arduino and BeagleBone)
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Dear reader,

Dear reader, | Raspberry Pi | Scoop.it

The Raspberry Pi project website is http://www.raspberrypi.org/

This is one of my news digests. If you like my editorial choices, there are more to be found by clicking on the "dear reader" link, and on my name above.
Enjoy !

Donald Thomas's curator insight, August 30, 2014 8:07 AM

this is 

Wuzea Recherche's comment, March 15, 2015 6:45 AM
Propose de rechercher une ressource en tapant un mot clé dans le champ de recherche. Wuzea : http://www.wuzea.com
Vasu10's curator insight, June 9, 2021 1:49 AM
Takeoff projects help students complete their academic projects. Register at takeoff projects today to find and learn about different interesting big data projects and grab the best jobs. Get started right now.
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Raspberry Pi Compute Module 4 Powers Lyra+ Gaming Handheld

Raspberry Pi Compute Module 4 Powers Lyra+ Gaming Handheld | Raspberry Pi | Scoop.it
A second-generation handheld for streaming and retro gaming...
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Arduino Edge Control Enclosure Kit is IP40-certified and fits DIN rail

Arduino Edge Control Enclosure Kit is IP40-certified and fits DIN rail | Raspberry Pi | Scoop.it
After more than a year of Arduino Edge Control introduction, the team has unveiled an enclosure...
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This device predicts when a refrigerator might fail using embedded ML

This device predicts when a refrigerator might fail using embedded ML | Raspberry Pi | Scoop.it
The refrigerator is one of the centerpieces in a modern kitchen, and experiencing a loss in cooling can lead to hundreds or even thousands of dollars of spoiled goods.Perhaps even more importantly, a sudden loss of medications or vaccines that heavily rely on refrigeration can heave a big impact ...
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Raspberry Pi Foundation brings Wi-Fi to Pico microcontroller

Raspberry Pi Foundation brings Wi-Fi to Pico microcontroller | Raspberry Pi | Scoop.it
Last year, the Raspberry Pi Foundation launched the first product based on silicon that was developed in-house. Now the Pico microcontroller has been upgraded with built-in Wi-Fi for running new Internet-of-Things projects.
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The Music of Atari #MusicMonday « Adafruit Industries – Makers, hackers, artists, designers and engineers!

The Music of Atari #MusicMonday « Adafruit Industries – Makers, hackers, artists, designers and engineers! | Raspberry Pi | Scoop.it
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Mini review of ORICO "USB 4.0" M.2 NVMe SSD enclosure - CNX Software

Mini review of ORICO "USB 4.0" M.2 NVMe SSD enclosure - CNX Software | Raspberry Pi | Scoop.it
ORICO has sent me a sample of a USB 4.0 M.2 NVMe SSD enclosure for review, which was timely as I did not have a fast USB storage option for testing.In...
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How to Program an Ultrasonic Humidifier

How to Program an Ultrasonic Humidifier | Raspberry Pi | Scoop.it
Author: Marian Hryntsiv, Senior Technical Documentation Apps Engineer, Renesas Electronics 1. System Overview Nowadays, humidifiers have...
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arduino - A problem when connect sd card to esp8266

arduino - A problem when connect sd card to esp8266 | Raspberry Pi | Scoop.it
A problem when connect sd card to esp8266 Ask Question Asked today Modified today Viewed 2 times 0 I want to connect a sd card module to my esp8266 nodemcu board. But the library seems not to support it, as the interface of the library is totally different from mine. So I couldn't find any way to solve this problem. I have seen others' code, and the library in their code can support it! I don't understand why. Can you tell me some way to modify the fixed interface from the library(I can't find the file), or just offer me a link to the library file that I can download and use. arduino esp8266 android-sdcard sd-card nodemcu Share Follow asked 1 min ago coderyoga 1 Add a comment Know someone who can answer? Share a link to this question via email, Twitter, or Facebook. Your Answer <h3 class="flex--item fs-title">Post as a guest</h3> <div class="flex--item"> <div class="d-flex gs4 gsy fd-column"> <label class="s-label" for="display-name">Name</label> <div class="d-flex ps-relative"> <input id="display-name" tabindex="105" value="" placeholder="" maxlength="30" class="s-input" name="display-name" type="text"> </div> </div> </div> <div class="flex--item"> <div class="d-flex gs4 gsy fd-column"> <div class="flex--item"> <div class="d-flex gs2 gsy fd-column"> <label class="flex--item s-label" for="m-address">Email</label> <p class="flex--item s-description">Required, but never shown</p> </div> </div> <div class="d-flex ps-relative"> <input id="m-address" class="s-input js-post-email-field" type="text" size="40" value="" name="m-address" placeholder="" tabindex="106"> </div> </div> </div> Post Your Answer By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy Browse other questions tagged arduino esp8266 android-sdcard sd-card nodemcu or ask your own question. <div></div>
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How to make a simple MIDI Controller with Arduino that works on iOS | AudioKit Pro

How to make a simple MIDI Controller with Arduino that works on iOS | AudioKit Pro | Raspberry Pi | Scoop.it
https://www.youtube.com/watch?v=cHiTPoNCv1w&feature=youtu.be You may know  developer Nick Culbertson (Moby Pixel) from his excellent videos on building your own instrument app with AudioKit. In the above video, Nick shows you how to make a simple MIDI Controller with Arduino.
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ESP32-CAM - Espressif ESP32 WiFi Bluetooth BLE Module and 2MP Camera

ESP32-CAM - Espressif ESP32 WiFi Bluetooth BLE Module and 2MP Camera | Raspberry Pi | Scoop.it
ESP32-CAM Camera module with high-performance Espressif ESP32 Wifi + Bluetooth + BLE dual-core processor and OV2640 camera module with 2MP.
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ESP32 UWB DW3000(Ultra Wideband)

ESP32 UWB DW3000(Ultra Wideband) | Raspberry Pi | Scoop.it
Makerfabs ESP32 UWB DW3000 module is the newest version based on DW3000, it is Interoperable with Apple U1 chip, that makes it possible to work with the Apple system.
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Questions: chip selection and its consequences

Questions: chip selection and its consequences | Raspberry Pi | Scoop.it
Hello! I'm a programmer by trade looking to get into embedded programming. I have a product idea that I have completely developed and tested in software on...
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Pimoroni Celebrates the Raspberry Pi Pico W Launch with an Explosion of "Pico W Aboard" Carriers

Pimoroni Celebrates the Raspberry Pi Pico W Launch with an Explosion of "Pico W Aboard" Carriers | Raspberry Pi | Scoop.it
Technology, Software, AI, Robotics, and more from the world of technology...
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Classic Mid-Century Slide Previewer Has a Second Life as a Compact Raspberry Pi Retro Gaming Field

Classic Mid-Century Slide Previewer Has a Second Life as a Compact Raspberry Pi Retro Gaming Field | Raspberry Pi | Scoop.it
Technology, Software, AI, Robotics, and more from the world of technology...
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Collaboration gives students internet-of-things work experience

Collaboration gives students internet-of-things work experience | Raspberry Pi | Scoop.it
Huddling in front of a computer monitor, with fish tanks burbling a few metres away and small seedlings growing in adjacent trays, Lethbridge College Computer Information Technology (CIT) student Shealyn Cossette seems to be right in her element. Cossette, who is completing her CIT diploma over...
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Adafruit MacroPad RP2040 Starter Kit - 3x4 Keys + Encoder + OLED - ADA - Pimoroni

Adafruit MacroPad RP2040 Starter Kit - 3x4 Keys + Encoder + OLED - ADA - Pimoroni | Raspberry Pi | Scoop.it
Strap yourself in, we're launching in T-minus 10 seconds...Destination? A new Class M planet called MACROPAD!
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Guitar Amp with Raspberry Pi #MusicMonday « Adafruit Industries – Makers, hackers, artists, designers and engineers!

Guitar Amp with Raspberry Pi #MusicMonday « Adafruit Industries – Makers, hackers, artists, designers and engineers! | Raspberry Pi | Scoop.it
In this video dsagman shows the features of this amp, via MusicTech: Guitar amplifier in remodeled Vox amplifier cabinet using Raspberry PI, Python, PYO audio processing and a class D amplifier.Se…...
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Solar Energy Monitoring with Raspberry Pi and Node-Red | by Mitch Ross | Jul, 2022

Solar Energy Monitoring with Raspberry Pi and Node-Red | by Mitch Ross | Jul, 2022 | Raspberry Pi | Scoop.it
I’ve always been curious about solar energy, so a few years ago I started dabbling with it by throwing a 100-watt panel on top of my backyard shed.The goal was not to save money, as I could have…...
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How To Upload Source Code In An Arduino Board?

How To Upload Source Code In An Arduino Board? | Raspberry Pi | Scoop.it
Getting started with an Arduino board and uploading the code could be a little confusing for some beginners. Lets start learning.
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MNT Reform Goodness, Now Even Smaller With Pocket Reform

MNT Reform Goodness, Now Even Smaller With Pocket Reform | Raspberry Pi | Scoop.it
You might have already seen the pretty pictures in pastel colors online -- a small netbook-like computer with a full-size keyboard. This, while a render, is what the MNT Pocket Reform is going to look...
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Electronic System Design

Electronic System Design | Raspberry Pi | Scoop.it
Altair’s tools allow your team of engineers to collaborate across electronics design, PCB sim and MFG, EMC/EMI, sensor design and firmware development .
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Pico OLED 1.3 - Waveshare Wiki

Pico OLED 1.3 - Waveshare Wiki | Raspberry Pi | Scoop.it
From Waveshare Wiki Jump to: navigation, search Pico OLED 1.3 1.3inch OLED Display Module for Raspberry Pi Pico, 64×128, SPI/I2C Contents 1 Overview 2 Features 3 Specification 4 Pinout 5 OLED and its controller 6 Protocol 7 Hardware connection 7.1 Connection(Directly) 7.2 Connection(with adapter board) 8 Setup environment 9 Download Demo codes 10 Run the Demo codes 10.1 C examples 11 Codes Analysis 11.1 C 11.2 Bottom hardware interface 11.3 Application functions 12 Document 13 Examples 14 Support Overview This 1.3inch OLED display module is designed for Raspberry Pi Pico, 64x128 pixels, support PSI/I2C interface. Features Adopts both 4-wire SPI and I2C interface, better compatibility, fast data rate 2x user buttons for easy interacting Standard Raspberry Pi Pico header, supports Raspberry Pi Pico series boards Specification Working voltage 2.6V ~ 5.5V Current 40mA Controller SH1107 Interface 4-wire SPI / I2C Resolution 64 x 128 Pixels Pixel size 0.15 × 0.15mm Display area 14.70 × 29.42mm Outline dimension 52.00 x25.00(mm) Pinout OLED and its controller This OLED integrates the SH1107 controller which has 128x128 bits SRAM, supports 128x128 resolution. The controller features SPI/IIC/ 6800/8080 interface and 256 brightness levels. The resolution of this 1.3inch OLED is only 64x128, only half of the SRAM is used. This OLED uses four-line SPI and I2C interface for communicating, which supports higher compatibility and speed. Protocol Note: The MISO pin is hidden, for more details, you can refer to Datasheet Page11. CS: Chip selection of the slaver, the chip is activated when CS is Low; SI(D1): This is MOSI pin, the pin is used to transmit data from master to slaver; SCL(D0)is the SPI clock A0: This is the DC pin, it is used to determine the data input, DC=0: command is sent; SPI communication has data transfer timing, which is combined by CPHA and CPOL. CPOL determines the level of the serial synchronous clock at an idle state. When CPOL = 0, the level is Low. However, CPOL has little effect on the transmission. CPHA determines whether data is collected at the first clock edge or at the second clock edge of the serial synchronous clock; when CPHL = 0, data is collected at the first clock edge. According to the figure, SCL is high in idle and it starts to transmit data at the second edge. therefore the timing is Mode 3 (0x11). Data is transmitted in MSB format. Hardware connection Please take care of the direction when you connect Pico, an USB port is printed to indicate . You can also check the pin of Pico and the OLED board when connecting. You can connect display according to the table. e-Paper Pico Description VCC VSYS Power Input GND GND GND DIN GP11 MOSI pin of SPI, data transmitted from Master t Slave CLK GP10 SCK pin of SPI, clock pin CS GP9 Chip selection of SPI, low active DC GP8 Data/Command control pin (High:data; Low: command) RST GP12 Reset pin, low active BL GP13 Backlight control Connection(Directly) Connection(with adapter board) Setup environment Please refer to Raspberry Pi's guide:https://www.raspberrypi.org/documentation/pico/getting-started/ Download Demo codes Open terminal and run the following command: sudo apt-get install p7zip-full cd ~ sudo wget https://www.waveshare.com/w/upload/3/3d/Pico_OLED_code.7z 7z x Pico_OLED_code.7z -o./Pico_OLED_code cd ~/Pico_OLED_code cd c/build/ Run the Demo codes This guides is based on Raspberry Pi. C examples Open a terminal and enter the directory of C codes: cd ~/Pico_OLED_code/c/ If the display you use is Pico-OLED-1.3, you need to uncomment the line OLED_1in3_C_test() and save it. Create a build folder and add SDK: For example, if the path of SDK is ../../pico-sdk Then you should create build and add the path like these: mkdir build cd build export PICO_SDK_PATH=../../pico-sdk #export PICO_SDK_PATH=/home/pi/pico/pico-sdk Run cmake.. command to to generate Makefile file cmake .. Run make command to build. make -j Codes Analysis C Bottom hardware interface We package the hardware layer for easily porting to the different hardware platforms. DEV_Config.c(.h) in the directory:...\c\lib\Config Data type: #define UBYTE uint8_t #define UWORD uint16_t #define UDOUBLE uint32_t Module initialize and exit: void DEV_Module_Init(void); void DEV_Module_Exit(void); Note: 1.The functions above are used to initialize the display or exit handle. GPIO write/read: void DEV_Digital_Write(UWORD Pin, UBYTE Value); UBYTE DEV_Digital_Read(UWORD Pin); SPI transmit data void DEV_SPI_WriteByte(UBYTE Value); Application functions We provide basic GUI functions for testing, like draw point, line, string and so on. The GUI function can be found in directory:..\c\lib\GUI\GUI_Paint.c(.h) The fonts used can be found in directory: RaspberryPi\c\lib\Fonts Create a new image, you can set the image name, width, height, rotate angle and color. void Paint_NewImage(UWORD *image, UWORD Width, UWORD Height, UWORD Rotate, UWORD Color, UWORD Depth) Parameter: image : Name of the image buffer, this is a pointer; Width : Width of the image; Height: Height of the image; Rotate: Rotate angle of the Image; Color : The initial color of the image; Depth : Depth of the color Select image buffer: You can create multiple image buffers at the same time and select the certain one and drawing by this function. void Paint_SelectImage(UBYTE *image) Parameter: image: The name of the image buffer, this is a pointer; Rotate image: You need to set the rotate angle of the image, this function should be used after Paint_SelectImage(). The angle can 0, 90, 180, 270 void Paint_SetRotate(UWORD Rotate) Parameter: Rotate: Rotate angle of the image, the parameter can be ROTATE_0, ROTATE_90, ROTATE_180, ROTATE_270. 【Note】Afer rotating, the place of the first pixel is different as below Image mirror: This function is used to set the image mirror. void Paint_SetMirroring(UBYTE mirror) Parameter: mirror: Mirror type if the image, the parameter can be MIRROR_NONE、MIRROR_HORIZONTAL、MIRROR_VERTICAL、MIRROR_ORIGIN. Set the position and color of pixels: This is the basic function of GUI, it is used to set the position and color of a pixel in the buffer. void Paint_SetPixel(UWORD Xpoint, UWORD Ypoint, UWORD Color) Parameter: Xpoint: The X-axis position of the point in the image buffer Ypoint: The Y-axis position of the point in the image buffer Color : The color of the point Color of the image: To set the color of the image, this function always be used to clear the display. void Paint_Clear(UWORD Color) Parameter: Color: The color of the image Color of the windows: This function is used to set the color of windows, it always used for updating partial areas like displaying a clock. void Paint_ClearWindows(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend, UWORD Color) Parameter: Xstart: X-axis position of the start point. Ystart: Y-axis position of the start point. Xend: X-axis position of the end point. Yend: Y-axis position of the end point Color: Color of the windows. Draw point: Draw a point at the position (Xpoint, Ypoint) of image buffer, you can configure the color, size, and the style. void Paint_DrawPoint(UWORD Xpoint, UWORD Ypoint, UWORD Color, DOT_PIXEL Dot_Pixel, DOT_STYLE Dot_Style) Parameter: Xpoint: X-axis position of the point. Ypoint: Y-axis position of the point Color: Color of the point Dot_Pixel: Size of the point, 8 sizes are available. typedef enum { DOT_PIXEL_1X1 = 1, // 1 x 1 DOT_PIXEL_2X2 , // 2 X 2 DOT_PIXEL_3X3 , // 3 X 3 DOT_PIXEL_4X4 , // 4 X 4 DOT_PIXEL_5X5 , // 5 X 5 DOT_PIXEL_6X6 , // 6 X 6 DOT_PIXEL_7X7 , // 7 X 7 DOT_PIXEL_8X8 , // 8 X 8 } DOT_PIXEL; Dot_Style: Style of the point, it define the extednded mode of the point. typedef enum { DOT_FILL_AROUND = 1, DOT_FILL_RIGHTUP, } DOT_STYLE; Draw line: Draw a lin from (Xstart, Ystart) to (Xend, Yend) in image buffer, you can configure the color, width and the style. void Paint_DrawLine(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend, UWORD Color, LINE_STYLE Line_Style , LINE_STYLE Line_Style) Parameter: Xstart: Xstart of the line Ystart: Ystart of the line Xend: Xend of the line Yend: Yend of the line Color: Color of the line Line_width: Width of the line, 8 sizes are available. typedef enum { DOT_PIXEL_1X1 = 1, // 1 x 1 DOT_PIXEL_2X2 , // 2 X 2 DOT_PIXEL_3X3 , // 3 X 3 DOT_PIXEL_4X4 , // 4 X 4 DOT_PIXEL_5X5 , // 5 X 5 DOT_PIXEL_6X6 , // 6 X 6 DOT_PIXEL_7X7 , // 7 X 7 DOT_PIXEL_8X8 , // 8 X 8 } DOT_PIXEL; Line_Style: Style of the line, Solid or Dotted. typedef enum { LINE_STYLE_SOLID = 0, LINE_STYLE_DOTTED, } LINE_STYLE; Draw rectangle: Draw a rectangle from (Xstart, Ystart) to (Xend, Yend) , you can configure the color, width, and style. void Paint_DrawRectangle(UWORD Xstart, UWORD Ystart, UWORD Xend, UWORD Yend, UWORD Color, DOT_PIXEL Line_width, DRAW_FILL Draw_Fill) Parameter: Xstart: Xstart of the rectangle. Ystart: Ystart of the rectangle. Xend: Xend of the rectangle. Yend: Yend of the rectangle. Color: Color of the rectangle Line_width: The width of the edges. 8 sizes are available. typedef enum { DOT_PIXEL_1X1 = 1, // 1 x 1 DOT_PIXEL_2X2 , // 2 X 2 DOT_PIXEL_3X3 , // 3 X 3 DOT_PIXEL_4X4 , // 4 X 4 DOT_PIXEL_5X5 , // 5 X 5 DOT_PIXEL_6X6 , // 6 X 6 DOT_PIXEL_7X7 , // 7 X 7 DOT_PIXEL_8X8 , // 8 X 8 } DOT_PIXEL; Draw_Fill: Style of the rectangle, empty or filled. typedef enum { DRAW_FILL_EMPTY = 0, DRAW_FILL_FULL, } DRAW_FILL; Draw circle: Draw a circle in image buffer, use (X_Center Y_Center) as center and Radius as radius. You can configure the color, width of line and the style of circle. void Paint_DrawCircle(UWORD X_Center, UWORD Y_Center, UWORD Radius, UWORD Color, DOT_PIXEL Line_width, DRAW_FILL Draw_Fill) Parameter: X_Center: X-axis of center Y_Center: Y-axis of center Radius:radius of circle Color: Color of the circle Line_width: The width of arc, 8 sizes are available. typedef enum { DOT_PIXEL_1X1 = 1, // 1 x 1 DOT_PIXEL_2X2 , // 2 X 2 DOT_PIXEL_3X3 , // 3 X 3 DOT_PIXEL_4X4 , // 4 X 4 DOT_PIXEL_5X5 , // 5 X 5 DOT_PIXEL_6X6 , // 6 X 6 DOT_PIXEL_7X7 , // 7 X 7 DOT_PIXEL_8X8 , // 8 X 8 } DOT_PIXEL; Draw_Fill: Style of the circle: empty or filled. typedef enum { DRAW_FILL_EMPTY = 0, DRAW_FILL_FULL, } DRAW_FILL; Show Ascii character: Show a characeter in (Xstart, Ystart) position, you can configure the font, foreground and the background. void Paint_DrawChar(UWORD Xstart, UWORD Ystart, const char Ascii_Char, sFONT* Font, UWORD Color_Foreground, UWORD Color_Background) Parameter: Xstart: Xstart of the character Ystart: Ystart of the character Ascii_Char:Ascii char Font: five fonts are avaialble: font8:5*8 font12:7*12 font16:11*16 font20:14*20 font24:17*24 Color_Foreground: foreground color Color_Background: background color Draw string: Draw string at (Xstart Ystart) , you can configure the fonts, foreground and the background void Paint_DrawString_EN(UWORD Xstart, UWORD Ystart, const char * pString, sFONT* Font, UWORD Color_Foreground, UWORD Color_Background) Parameter: Xstart: Xstart of the string Ystart: Ystart of the string pString:String Font: five fonts are available: font8:5*8 font12:7*12 font16:11*16 font20:14*20 font24:17*24的 Color_Foreground: foreground color Color_Background: background color Draw Chiness string: Draw Chinese string at (Xstart Ystart) of image buffer. You can configure fonts (GB2312), foreground and the background. void Paint_DrawString_CN(UWORD Xstart, UWORD Ystart, const char * pString, cFONT* font, UWORD Color_Foreground, UWORD Color_Background) Parameter: Xstart: Xstart of string Ystart: Ystart of string pString:string Font: GB2312 fonts, two fonts are available : font12CN:ascii 11*21,Chinese 16*21 font24CN:ascii 24*41,Chinese 32*41 Color_Foreground: Foreground color Color_Background: Background color Draw number: Draw numbers at (Xstart Ystart) of image buffer. You can select font, foreground and the background. void Paint_DrawNum(UWORD Xpoint, UWORD Ypoint, int32_t Nummber, sFONT* Font, UWORD Color_Foreground, UWORD Color_Background) Parameter: Xstart: Xstart of numbers Ystart: Ystart of numbers Nummber:numbers displayed. It support int type and 2147483647 are the maximum supported Font: Ascii fonts, five fonts are available: font8:5*8 font12:7*12 font16:11*16 font20:14*20 font24:17*24 Color_Foreground: Foregroud color Color_Background: Background color Draw float numbers: Draw float number at (Xstart Ystart) of image buffer, you can configure fonts, foreground, and background. void Paint_DrawFloatNum(UWORD Xpoint, UWORD Ypoint, double Number, UBYTE Decimal_Point, sFONT* Font, UWORD Color_Foreground, UWORD Color_Background); Parameter: Xstart: Xstart of the number Ystart: Ystart of the number Nummber:The float number. Double type. Decimal_Point:The decimal number Font: Ascii fonts, five fonts are avaialble.: font8:5*8 font12:7*12 font16:11*16 font20:14*20 font24:17*24 Color_Foreground: Foreground Color_Background: Background Display time: Display time at (Xstart Ystart) of image buffer, you can configure fonts, foreground and the background. void Paint_DrawTime(UWORD Xstart, UWORD Ystart, PAINT_TIME *pTime, sFONT* Font, UWORD Color_Background, UWORD Color_Foreground) Parameter: Xstart: Xstart of time Ystart: Ystart of time pTime:Structure of time Font: Ascii font, five fonts are avaialble font8:5*8 font12:7*12 font16:11*16 font20:14*20 font24:17*24 Color_Foreground: Foreground Color_Background: Background Document Schematic SH1107D Datasheet Examples Demo codes Support If you require technical support, please go to the Support page and open a tickets. Retrieved from "https://www.waveshare.com/w/index.php?title=Pico-OLED-1.3&oldid=30848";
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