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Tagastatavad esemed aktsepteeritakse 40 päeva jooksul alates kauba kättesaamise kuupäevast. Kohandatud esemeid ei saa tagastada ega vahetada. E-kingikaardiga ostetud esemeid saab ainult vahetada; tagasimakseid ei kohaldata.
Tasuta kingitus
Tere tulemast Roymalli, teie professionaalsesse kaubamajade kingituste ostmise veebisaitti. Hindame ja hindame teie toetust ning tahame väljendada tänu, lisades teie ostudele põnevat lisandväärtust. Kui te meiega ostlete, saate mitte ainult kõrge kvaliteediga tooteid, mis parandavad teie elustiili, vaid saate ka eksklusiivse tasuta kingituse iga teie tellimusega. Valmis meie kollektsiooni uurima ja leidma oma ideaalsed kingitused? Sirvige meie valikut premiumkaubamaja esemetest, esitage oma tellimus ja oodake põnevalt oma tasuta kingituse saabumist koos oma ostuga.
Tarne poliitika
Töötame pingsalt, et teile esemed pärast teie tellimuste vastuvõtmist kohale toimetada ja tagada nende ohutu kohalejõudmine. Tarne üksikasjad esitatakse teie kinnitusmeilis.Enamikel juhtudel töödeldakse tellimused 2 päeva jooksul.Eriolukordades viibib see järgmiselt: Kui teete tellimuse laupäeval, pühapäeval või riigipühadel, viibib see 2 päeva võrra..Tavaliselt kulub 5-7 tööpäeva (esmaspäevast reedeni), kui lendude viivitus või muud keskkonnategurid seda ei mõjuta..Kuna meie saatmisteene on ülemaailmne, sõltub tarneaeg teie asukohast, nii et see võib võtta mõne aja, palun oodake kannatlikult, kui asute kaugemates piirkondades või riikides.
1. Tagastamise ja vahetuse poliitika
Võtame vastu ainult roymall.com lehelt ostetud esemeid. Kui ostate meie kohalikelt jaemüüjatelt või teistest jaemüüjatelt, ei saa te neid meie poole tagastada.Lõpliku müügi esemeid või tasuta kingitusi ei võeta vastu tagastamiseks.Tagastamiseks peab teie ese olema kasutamata ja samas seisukorras, milles te selle said. See peab olema ka originaalpakendis.Pärast tagastamisjuhiste saamist meilt pakendage oma tagastatavad esemed ja viige oma pakk kohalikule postkontorile või mõnele teisele kullerile. Töötleme teie tagastatava või vahetatava eseme 3-5 tööpäeva jooksul pärast selle vastuvõtmist. Tagasimakse töödeldakse ja krediteeritakse automaatselt teie algsele makseviisile.Kohandatud toodet ei saa tagastada ega vahetada, sealhulgas kohandatud suurus, kohandatud värv või kohandatud print.Kui vajate rohkem abi, võtke meiega ühendust. service@roymall.com või Whatsapp: +447549870296
2.Tagasimakse poliitika
Saate täieliku tagasimakse või 100% poekrediidi pärast tagastatud pakendi vastuvõtmist ja kontrollimist. Tagasimakse töödeldakse ja krediteeritakse automaatselt teie algsele makseviisile.Pange tähele, et saatmiskulud ja kõik tollimaksud või tasud ei kuulu tagasimakse alla. Lisasaatmiskulusid ei tagastata, kui pakk on juba saadetud. Olete nende tasude eest vastutav ja me ei saa neid loobuda ega tagastada, isegi kui tellimus tagastatakse meile.Pärast tagastatud eseme vastuvõtmist ja kinnitamist saadame teile meili, et teavitada teid tagastatud eseme vastuvõtmisest. Teavitame teid ka teie tagasimakse kinnitamisest või tagasilükkamisest.Kui teil on tagasimakse protsessiga seotud probleeme, võtke meiega ühendust. service@roymall.com või Whatsapp: +447549870296
MAX7219 Microcontroller 4-in-1 Display Dot Matrix Module For
Specifications:
A single module can drive a 8x8 dot matrix common cathode Working voltage: 5V Module size: 12.8 x 3.2 x 1.3 cm (L*W*H) With 64 fixing screw holes, hole diameter: 3mm Module with input and output interfaces, support for cascading multiple modules
Wiring:
1. The left side of the module is the input port, and the right is the output port. 2. Control of a single module, the input port only need to receive CPU. 3. The more a module cascade and input end of the first module is connected with the CPU and input end of the input end of the output end is connected to the second module, output terminal of the second module connected with the three modules, and so on. For example: 51 SCM VCC→5V GND→GND DIN→P2.2 CS →P2.1 CLK→P2.0
Package included:
1 x MAX7219 Dot Matrix Module 1 x 5pin Dupont Cable
I first tried the dotMatrix on the Arduino with the Sprite and Matrix libraries. I got funny results because the column adressing is reversed.
Therefore I switched to the MD_MAX72xx libraries. Make sure to change the define in the MD_MAX72xx. h file to read:
#define USE_FC16_HW 1
I used the MD_Keyswitch library found at https://github.com/MajicDesigns/MD_KeySwitch
and the MD_MAX72xx library found at https://github.com/MajicDesigns/MD_MAX72XX
Then I pulled the source at https://github.com/MajicDesigns/MD_MAX72XX/blob/master/examples/MD_MAX72xx_ScrollChart/MD_MAX72xx_ScrollChart.ino
With that you should be able to get it to work.
If you use pins that are not-SPI standard, make sure to activate the call to MD_MAX72XX with four parameters, and comment out the one with two parameters.
I first tried the dotMatrix on the Arduino with the Sprite and Matrix libraries. I got funny results because the column adressing is reversed.
Therefore I switched to the MD_MAX72xx libraries. Make sure to change the define in the MD_MAX72xx. h file to read:
#define USE_FC16_HW 1
I used the MD_Keyswitch library found at https://github.com/MajicDesigns/MD_KeySwitch
and the MD_MAX72xx library found at https://github.com/MajicDesigns/MD_MAX72XX
Then I pulled the source at https://github.com/MajicDesigns/MD_MAX72XX/blob/master/examples/MD_MAX72xx_ScrollChart/MD_MAX72xx_ScrollChart.ino
With that you should be able to get it to work.
If you use pins that are not-SPI standard, make sure to activate the call to MD_MAX72XX with four parameters, and comment out the one with two parameters.
I first tried the dotMatrix on the Arduino with the Sprite and Matrix libraries. I got funny results because the column adressing is reversed.
Therefore I switched to the MD_MAX72xx libraries. Make sure to change the define in the MD_MAX72xx. h file to read:
#define USE_FC16_HW 1
I used the MD_Keyswitch library found at https://github.com/MajicDesigns/MD_KeySwitch
and the MD_MAX72xx library found at https://github.com/MajicDesigns/MD_MAX72XX
Then I pulled the source at https://github.com/MajicDesigns/MD_MAX72XX/blob/master/examples/MD_MAX72xx_ScrollChart/MD_MAX72xx_ScrollChart.ino
With that you should be able to get it to work.
If you use pins that are not-SPI standard, make sure to activate the call to MD_MAX72XX with four parameters, and comment out the one with two parameters.
very good product and good price.
If you don't know how that work i found one good tutorial.
https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/
If you try the programs and see that they do not work with the first one.
Try changing the names of the pins you will use and reload the program on Arduino.
e.g.
CS_PIN 10
DATAPIN 11
CLK_PIN 13
very good product and good price.
If you don't know how that work i found one good tutorial.
https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/
If you try the programs and see that they do not work with the first one.
Try changing the names of the pins you will use and reload the program on Arduino.
e.g.
CS_PIN 10
DATAPIN 11
CLK_PIN 13
very good product and good price.
If you don't know how that work i found one good tutorial.
https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/
If you try the programs and see that they do not work with the first one.
Try changing the names of the pins you will use and reload the program on Arduino.
e.g.
CS_PIN 10
DATAPIN 11
CLK_PIN 13
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
@***** look it up in the MAX7219 datasheet. Another cool thing about these ICs is the need for just one resistor to limit the current for all segments x digits (64 per IC) to retain the same brightness whether only one LED is on or all 64. IIRC there's a chart there with recommended resistor values depending on number of LEDs. I could probably lift one of the 8x8 matrices off and see what resistor value they've used, but the datasheet should give you an idea. Assume you need an external power supply though. They're not super bright but it's still 256 LEDs.
@***** look it up in the MAX7219 datasheet. Another cool thing about these ICs is the need for just one resistor to limit the current for all segments x digits (64 per IC) to retain the same brightness whether only one LED is on or all 64. IIRC there's a chart there with recommended resistor values depending on number of LEDs. I could probably lift one of the 8x8 matrices off and see what resistor value they've used, but the datasheet should give you an idea. Assume you need an external power supply though. They're not super bright but it's still 256 LEDs.
Answered by BG344213471 on 31/08/2022Helpful (0)
0
Q:
Can I daisy chain several of these? By just connecting output of the first with input of the next?
Can I daisy chain several of these? By just connecting output of the first with input of the next?
Depending on how much you want to daisy chain you should inject supply power every 2 or 3 modules else the voltage drop and the current running through the modules gets to high
Depending on how much you want to daisy chain you should inject supply power every 2 or 3 modules else the voltage drop and the current running through the modules gets to high
Depends on what you mean by "users manual". The datasheet for the MAX7219 controller is excellent and all you need to know to program these things. If you want plug and play there are multiple libraries to choose from.
Depends on what you mean by "users manual". The datasheet for the MAX7219 controller is excellent and all you need to know to program these things. If you want plug and play there are multiple libraries to choose from.
Answered by BG344213471 on 31/08/2022Helpful (0)
0
Q:
I can choose the color of the matrix or only send it in a single color?
I can choose the color of the matrix or only send it in a single color?
Use the MD_MAX72XX library. With the device set to: #define HARDWARE_TYPE MD_MAX72XX::ICSTATION_HW. If you don't change that line in the examples, the characters are mirrored. Use the MD_Parola library (also) for even more functions. All sketches have to include that line, the default is Parola hardware.
Use the MD_MAX72XX library. With the device set to: #define HARDWARE_TYPE MD_MAX72XX::ICSTATION_HW. If you don't change that line in the examples, the characters are mirrored. Use the MD_Parola library (also) for even more functions. All sketches have to include that line, the default is Parola hardware.
Answered by Strider on 28/11/2018Helpful (0)
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