Research Reports of Kumamoto-NCT. Vol. 4 (2012)
8×8LED ࡑ࠻ࠢࠬࠍ↪ߚ㔚శឝ␜᧼ᢎ᧚ߩ㐿⊒ߣߘߩᵴ↪
⪲ጊ ᷡノ
㧖Development and utilization of educational material of the electrical display using 8×8 matrix LED
Kiyoteru Hayama㧖Hobby electronics is a good opportunity to learn information, communication and electronics engineering. In this study, the electrical display using 8×8 matrix LED is developed for educational material. Additional board for expansion of the display area is also developed. The display is utilized for the subject of our open campus, public lecture etc.
ࠠࡢ࠼㧦.'& ࡑ࠻ࠢࠬ㧘㔚శឝ␜᧼㧘#84 ࡑࠗࠦࡦ
Keywords㧦LED matrix, display, AVR
㧝㧚ߪߓߦ
㔚ሶᎿߪ㔚ሶᖱႎ♽ߩᛛⴚࠍりㄭߦᗵߓߡ߽ࠄ߃ࠆᯏ ળߢࠅ㧘ᧄᩞߩࠝࡊࡦࠠࡖࡦࡄࠬ㧘㐿⻠ᐳ㧘೨ ᬺߢ߽ࠃߊⴕࠊࠇߡࠆ㧚ଔߢ⍴ᤨ㑆ߦᎿߢ߈ታ↪ᕈ ߢߩ㕙⊕ߐߩࠆ㔚ሶᎿߩ㗴᧚ߣߒߡ 8×8LED ࡑ࠻ࠢ ࠬࠍ↪ߚ㔚శឝ␜᧼㧔એਅ㧘㔚శឝ␜᧼㧕ߩࠠ࠶࠻ࠍ㐿 ⊒ߒ㧘ߘߩᔕ↪ߦߟߡ߽ᬌ⸛ߒߚ㧚ታ㓙ߦࠝࡊࡦࠠࡖ ࡦࡄࠬ╬ߢᵴ↪ߒߚ߽ႎ๔ߔࠆ㧚㧞㧚㔚శឝ␜᧼ߩ㐿⊒
ⷐ ࿑ 1 ߦ㐿⊒ߒߚ 8×8LED ࡑ࠻ࠢࠬࠍ↪ߚ㔚శឝ␜᧼ ࠍ␜ߔ㧚 ࿑1 8×8LED ࡑ࠻ࠢࠬࠍ↪ߚ㔚శឝ␜᧼ ᢥሼ߇Ꮐ߆ࠄฝߦᵹࠇߥ߇ࠄജߒߚᢥሼ߇␜ߐࠇ ࠆࠃ߁ߦߥߞߡࠆ㧚ᦨᄢ25 ᢥሼߢછᗧߩᢥሼࠍ 4 ߟࠬ ࠗ࠶࠴ࠍߞߡജߢ߈ࠆ㧚න3 ဳੇ㔚ᳰ 2 ᧄߢേน⢻ ߢࠆ㧚 ᠲᣇᴺߩ⺑ ࠬࠗ࠶࠴ߩ߈ߪ㧘એਅߩࠃ߁ߦഀࠅᒰߡߡࠆ㧚 ฝࠬࠗ࠶࠴㧦ᰴߩᢥሼ߳㧘 2 ⑽㐳ߒߢࡕ࠼ಾᦧ㧔ജ ࡕ࠼ߣ␜ࡕ࠼㧕㧚 Ꮐࠬࠗ࠶࠴㧦೨ߩᢥሼ߳㧘2 ⑽㐳ߒߢࡔࡕᶖ㧘ᦝߦ 2 ⑽㐳ߒߢ࠺ࡕ(ޟߊ߹߽ߣߎ߁ߖࠎޠߩᢥሼ)ࠍ␜㧚 ਅࠬࠗ࠶࠴㧦50 㖸㗅ߦᢥሼࠍㅍࠆ㧘ᦨᓟߦⓨ⊕㧘Ộὐߥߤ㧚 㐳ߒߢ⥄േㅍࠅ㧚 ࠬࠗ࠶࠴㧦50 㖸ߩㅒ㗅ߦᢥሼࠍᚯߔ㧘㐳ߒน⢻ ᠲᚻ㗅ࠍએਅߦ⸥ߔ㧚 1㧕Ꮐࠬࠗ࠶࠴ࠍ㐳ߒߒߡࡔࡕࠍᶖߒ㧘ޟޠࠍ␜ ߐߖࠆ㧚 2㧕ਅࠬࠗ࠶࠴ߢജߒߚᢥሼࠍㆬ߱㧚 3㧕ฝࠬࠗ࠶࠴ࠍߔߣⓨ⊕ߦߥࠆߩߢᰴߦജߒߚᢥሼ ࠍㆬ߱㧚 4㧕ห᭽ߦฝࠬࠗ࠶࠴ࠍߒ㧘ਅࠬࠗ࠶࠴ߢᢥሼࠍㆬࠎߢ ߊ㧚 5㧕Ꮐฝߩࠬࠗ࠶࠴ߢᢥሼࠍㅍࠆߎߣߢ㧘ജߒߚᢥሼߩ ⏕߇ߢ߈ࠆ㧚ୃᱜߒߚߣ߈ߪୃᱜߒߚᢥሼ߇␜ ߐࠇߚߣߎࠈߢਅࠬࠗ࠶࠴ߢᢥሼࠍㆬ߮⋥ߖ߫⦟㧚 6㧕ᢥሼߩജ߇⚳ࠊߞߚࠄฝࠬࠗ࠶࠴ࠍ⚂ 2 ⑽㐳ߒߔࠆ㧚 ߔࠆߣ␜ࡕ࠼߇ಾࠅᦧࠊࠅ㧘ജߒߚᢥሼ߇Ꮐߦᵹ ࠇߥ߇ࠄ␜ߐࠇࠆ㧚 ߥ߅㧘␜ࡕ࠼ࠍಾࠅᦧ߃ߚߣ߈ߦജߒߚᢥሼ߇ࡑ ࠗࠦࡦߩౝㇱߩEEPROM ߦ⸥㍳ߐࠇࠆߩߢ㔚Ḯࠬࠗ࠶࠴ࠍ ಾߞߡ߽㧔㔚ᳰࠍᛮߡ߽㧕⸥㍳ߪᜬߐࠇࠆ㧚ౣᐲ㔚Ḯ 㧖 ᖱႎㅢାࠛࠢ࠻ࡠ࠾ࠢࠬᎿቇ⑼ ޥ861-1102 ᾢᧄ⋵วᔒᏒ㗇ደ 2659-2Dept. of Information, Communication and Electronic Engineering, 2659-2 Suya, Koshi-shi, Kumamoto, Japan 861-1102
ႎ๔
熊本高等専門学校 研究紀要 第 4 号(2012) ࠍࠇߚߣ߈ߪ␜ࡕ࠼ߦߥߞߡࠆߩߢᢥሼࠍജߒ ߥ߅ߒߚߣ߈ߪ㧘ฝࠬࠗ࠶࠴ࠍ㐳ߒߒߡജࡕ࠼ߦ ಾࠅᦧ߃ࠆ߆㧘Ꮐࠬࠗ࠶࠴ࠍ㐳ߒߒߡࡔࡕᶖࠍⴕ߁㧚 㔚శឝ␜᧼ߩ࿁〝 Ꮢ⽼ߩ8×8LED ࡑ࠻ࠢࠬ(1)ߩౝㇱ࿁〝ࠍ࿑2 ߦ␜ߔ㧚 COL ߦធ⛯ߐࠇߡࠆࡐ࠻ߪᦨೋജ⁁ᘒ㧔⛘✼⁁ᘒ㧕 ߦߒߡ߅ߊ㧚ROW ߩ 8 ᧄߩାภ✢ߦ L ߹ߚߪ H ࡌ࡞ߩା ภࠍਈ߃㧘COL ࠍ 1 ᧄߕߟ㗅⇟ߦ L ࡌ࡞ജߦಾࠅᦧ߃ ߡߊߣ㧘1 ߕߟ LED ࠍὐἮߐߖࠆߎߣ߇ߢ߈ࠆ㧚ROW ߦ࠺࠲ࠍਈ߃ߥ߇ࠄ㜞ㅦߦCOL ࠍಾࠅᦧ߃ࠆ࠳ࠗ࠽ࡒ࠶ ࠢὐἮᓮߦࠃࠅ␜ࠍⴕ߁㧚 㔚శឝ␜᧼ߩ࿁〝ࠍ࿑3 ߦ␜ߔ㧚Atmel ␠ߩ AVR ࡑࠗࠦ ࡦ㧔Atmega168P㧕ࠍ↪ߡࠆ㧚 ࿑ 8×8.'& ࡑ࠻ࠢࠬߩ࿁〝
ROW ߪ AVR ࡑࠗࠦࡦߩࡐ࠻ B㧘COL ߪࡐ࠻ D ߦ⋥
ធធ⛯ߐࠇ߅ࠅߎࠇࠄߩࡐ࠻ߦାภࠍਈ߃ࠆߎߣߢ㧘LED ࡑ࠻ࠢࠬߩ␜ࠍⴕ߁㧚ࡑࠗࠦࡦ߳ߩജߪࡐ࠻C ߩ PC0 ߆ࠄ PC3 ߩ 4 ᧄߦធ⛯ߐࠇߚࠬࠗ࠶࠴ߢⴕ߁㔚ሶᎿ ࠠ࠶࠻ߣߒߡឭଏߔࠆ႐วߪࡊࡠࠣࡓᦠ߈ㄟߺᷣߺߩࡑ ࠗࠦࡦࠍ↪ᗧߔࠆ߇㧘ISP ┵ሶࠍ↪ߡࡊࡠࠣࡓߩᦠ߈឵ ߃ࠍⴕ߁ߎߣ߇ߢ߈ࠆߩߢᬺ╬ߩᢎ᧚ߣߒߡ࠰ࡈ࠻࠙ࠚ ࠕṶ⠌↪ߦ↪ࠆߎߣ߽ߢ߈ࠆ㧚 ࠍኈᤃߦߔࠆߚ㧘ㇱຠὐᢙࠍዋߥߊߒ㧘ኾ↪ߩၮ ᧼ࠍ⸳⸘ߒᄖᵈߒߚ㧚↪ㇱຠߩ㈩⟎ߣㇱຠฬ߇ࠪ࡞ࠢශ ߐࠇߡ߅ࠅ㧘ㇱຠ㧔1㧕ߣኻᲧߒߥ߇ࠄㇱຠࠍࡂࡦ࠳ ઃߌߔࠇ߫ࠃ㧚ㇱຠଔᩰߩว⸘ߪ700 ⒟ᐲߣߥߞߚ㧚 㔚శឝ␜᧼ߩㇱຠ ⷰ ㇱຠฬ ᢙ ⷰ ㇱຠฬ ᢙ ၮ᧼ 㧝ᨎ 㔚ᳰࠤ ࠬ㧔න3 ဳ2 ᧄ㧕 㧝 8×8.'& ࡑ࠻ ࠢࠬ 㧝 ࠲ࠢ࠻ࠬ ࠗ࠶࠴ 㧠 #84 ࡑࠗࠦࡦ 㧔ࡊࡠࠣ ࡓᦠㄟߺᷣ ߺ㧕 ࠬࡍࠨ 㧔⿷㧕 㧠ᧄ Ⓧጀࡒ ࠶ࠢࠦࡦ࠺ ࡦࠨ Ǵ( 㧝 㔚శឝ␜᧼ߩ࠰ࡈ࠻࠙ࠚࠕ ࡊࡠࠣࡓߩ㐿⊒ߦߪ㧘AVR ߩ⊒ᄁరߢࠆ Atmel ␠߇ ήఘߢឭଏߒߡࠆ⛔ว㐿⊒ⅣႺߩ AVR Studio(2)ߦࡈ ࠰ࡈ࠻ߩ C ࠦࡦࡄࠗ WinAVR(3)ࠍ⚵ߺㄟࠎߛ߽ߩࠍ↪ ߒߚ㧚ࡑࠗࠦࡦߩࡊࡠࠣࡓᦠ߈ㄟߺߦߪ Atmel ␠ߩ ISP ࠷࡞ߢࠆAVR-ISPMkII ࠍ↪ߒߡࠆ㧚 ࠰ࡈ࠻࠙ࠚࠕߪ㧘ࡑ࠻ࠢࠬ␜㧘ࠠജಣℂ㧘ࡕ ࠼▤ℂ㧘ࡈࠜࡦ࠻ࠃࠅ᭴ᚑߐࠇߡࠆ㧚ࡈࠜࡦ࠻ߦߟߡ㧘 ዊቇ↢ኻ⽎ࠍᗐቯߒߡ߭ࠄ߇ߥࡈࠜࡦ࠻ࠍ 8×8 ࠼࠶࠻ߢ㧘 ਛቇ↢એߩኻ⽎ࠍᗐቯߒߡࠕ࡞ࡈࠔࡌ࠶࠻߮⸥ภࠍ 8×5 ࠼࠶࠻ߢ⁛⥄ߦᚑߒߚ㧚 ࡈࠜࡦ࠻ߩᚑࠍല₸⦟ߊⴕ߁ߚߦ㧘࿑ 4 ߩࡈࠜࡦ࠻ ࠛ࠺ࠖ࠲ࠍVisualBasic ࠍ↪ߡߦ㐿⊒ߒߚ㧚 ࿑3 㔚శឝ␜᧼ߩ࿁〝 ࿑4 8x8 ࡈࠜࡦ࠻ࠛ࠺ࠖ࠲
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Research Reports of Kumamoto-NCT. Vol. 4 (2012) 8×8LED ࡑ࠻ࠢࠬࠍ↪ߚ㔚శឝ␜᧼ߩ㐿⊒ߣߘߩᵴ↪㧔⪲ጊ㧕 ᚑߒߚࡈࠜࡦ࠻࠺࠲ߪ㧘ࡋ࠶࠳ࡈࠔࠗ࡞ߣߒߡ↪ ߢ߈ࠆ࠹ࠠࠬ࠻ࡈࠔࠗ࡞ߣߒߡജߐࠇࠆࠃ߁ߦߒߚ㧚 㧟㧚
㔚శឝ␜᧼ߩᔕ↪
ᒛ↪ࠕ࠲࠶࠴ࡔࡦ࠻ߩ ታ↪㕙ࠍ⠨ᘦߔࠆߣ8×8 ࠼࠶࠻ߢߪᢥሼߩⷞᕈ߇ᖡ㧚 ߘߎߢ㧘␜ㇱಽࠍᮮᣇะߦߍࠆߎߣ߇ߢ߈ࠆࠃ߁ߦၮ ᧼ߩᡷ⦟ߣᒛၮ᧼ߩ㐿⊒ⴕߞߚ㧚࿑ 5 ߦᒛၮ᧼ࠍߞ ߡ␜ㇱࠍᐢߍߚ⁁ᘒࠍ␜ߔ㧚ᒛၮ᧼ߪLED ࡑ࠻ࠢࠬ ߣหߓߢ⸳⸘ߒߡᮮߦㅪ⚿᧪ࠆࠃ߁ߦߥߞߡ߅ࠅ㧘㔚 Ḯኈ㊂ߩ⸵ߔ㒢ࠅᒛ߇น⢻ߢࠆ㧚 ࿑5 ᒛၮ᧼ࠍߞߚ㔚శឝ␜᧼ߩ␜ 㔚శឝ␜᧼ߩၮ᧼㕙߆ࠄ㔚Ḯ㧘GND㧘ାภ✢ 2 ᧄࠍข ࠅ ߒ 㧘 ᒛ ၮ ᧼ ߣ ߩ ធ ⛯ ࠍ ⴕ ߁ 㧚 ᒛ ၮ ᧼ ߪ 㕙 ߦ 8x8LED ࡑ࠻ࠢࠬ㧘ⵣ㕙ߦ AVR ࡑࠗࠦࡦ㧔ATmega168P㧕 ࠍ㈩⟎ߒߡ㧘㔚శឝ␜᧼ߣߩㅢାࠍⴕߥ߇ࠄᢥሼߩ␜ ࠺࠲ࠍᏀㅍࠅߔࠆᯏ⢻ࠍᜬߚߖߡࠆ㧚 ࠕ࠽ࡠࠣജߦࠃࠆ↪ 㔚శឝ␜᧼ߩᏀ┵ߦ↪ᗧߒߚାภ✢ߪࠕ࠽ࡠࠣജߦ߽ ↪ߢ߈ࠆ㧚ߘߎߢ㧘ࠕ࠽ࡠࠣജߦࠃࠅᢥሼㆬᛯࠍⴕ߁ ␜ེߣߒߡߩ↪ࠍ⠨߃ߚ㧚࿑6 ߪ㔚⏛⺃ዉࠍ↪ߒߡ 2 ᜰߩ〒㔌ࠍ⸘᷹ߒ㧘ᢥሼജ␜ࠍⴕ߁ⵝ⟎ߢࠆ㧚 ࿑6 2 ᜰߩ〒㔌ߢᢥሼജ␜ࠍⴕ߁ⵝ⟎ ߹ߚ㧘2 ᧄߩࡃߩⷺᐲࠍࡐ࠹ࡦ࡚ࠪࡔ࠲ࠍ↪ߡ⸘ ᷹ߒ㧘ᢥሼജ␜ࠍⴕ߁ࠍ࿑ 7 ߦ␜ߔ㧚߃߫㧘 㧘㓚ኂ╬ߢㆇേᯏ⢻ߦ㒢߇߆߆ߞߚ⁁ᘒߢ╬ߢ߽ࡃ ߥߤන৻ߩࠕ࠽ࡠࠣജᯏེߢᢥሼജ㧘␜߹ߢࠍⴕ ߁ࠪࠬ࠹ࡓߣߒߡ↪ߢ߈ࠆߩߢߪή߆ߣ⠨߃ߡࠆ㧚 ࿑7 ࡃࠍ↪ߡᢥሼജ␜ࠍⴕ߁ⵝ⟎ 㧠㧚㔚శឝ␜᧼ᢎ᧚ߩᵴ↪
㐿⊒ߒߚ㔚శឝ␜᧼ࠍ᭽ޘߥ႐㕙ߢᵴ↪ߒߡ߽ࠄ߃ࠆࠃ ߁ߦA4 ߢ 4 ࡍࠫߩࡑ࠾ࡘࠕ࡞㧘⸃⺑ࠍߚ 6 ࡍ ࠫߩࡑ࠾ࡘࠕ࡞㧘࠰ࠬࡊࡠࠣࡓࠍߚ࠰ࡈ࠻࠙ࠚ ࠕṶ⠌ߦ߽↪ߢ߈ࠆ⸃⺑ᦠࠍ↪ᗧߒߚ㧚ᤨ㑆ߪ㧘ඨ ↰ઃߌ⚻㛎⠪ߢ15 ಽ⒟ᐲ㧘ᧂ⚻㛎⠪ߢ߽ 30 ಽ⒟ᐲࠇ߫ ቢᚑߢ߈ࠆ㧚 એਅߦߔࠆᵴ↪߆ࠄ㧘ዊቇᩞ㜞ቇᐕ⒟ᐲ߆ࠄ ߪน⢻ߢߞߚ㧚ขࠅᛒᣇᴺ߽ࡑ࠾ࡘࠕ࡞ࠍ⺒߫ฃ ⻠ኻ⽎⠪ߩ߶ߣࠎߤ߇⠌ᓧน⢻ߢߞߚ㧚 㧕એਅߩᧄᩞਥߩኻᄖᬺߩᢎ᧚㧔࿑8㧕 x ߅߽ߒࠈࠨࠗࠛࡦࠬࠊߊࠊߊታ㛎⻠ᐳKPᄤ⨲㨪⑼ቇ ᄢᅢ߈ੱ㑆ᄢ㓸ว㧍㨪㧔H22.8.28㧕 x ߅߽ߒࠈࠨࠗࠛࡦࠬࠊߊࠊߊታ㛎⻠ᐳ㨪⑼ቇᄢᅢ߈ ੱ㑆ᄢ㓸ว㧍㨪㧔H23.5.14㧕 x ߅߽ߒࠈࠨࠗࠛࡦࠬࠊߊࠊߊታ㛎⻠ᐳKPᄤ⨲㨪⑼ቇ ᄢᅢ߈ੱ㑆ᄢ㓸ว㧍㨪㧔H23.8.18㧕 ࿑8 ኻᄖᬺߢߩᵴ↪- 92 -
熊本高等専門学校 研究紀要 第 4 号(2012) 㧕ᧄᩞࠝࡊࡦࠠࡖࡦࡄࠬߩᖱႎㅢାࠛࠢ࠻ࡠ࠾ࠢࠬᎿ ቇ⑼ߩ㛎ᬺߩᢎ᧚ 㧕ᖱႎㅢାᎿቇ⑼4 ᐕߩ⸘▚ᯏᎿቇߦ߅ߡࡂ࠼࠙ࠚࠕ ߣ࠰ࡈ࠻࠙ࠚࠕṶ⠌ߩᢎ᧚ 㧡㧚