16鍊�(g猫)鐛�(d煤)绔婸WM杓稿嚭閫氶亾锛氭瘡鍊�(g猫)閫氶亾鍙�浠ョ��(d煤)绔嬭ō(sh猫)缃甈WM闋荤巼鍜屽崰绌烘瘮锛岄仼鐢ㄤ簬鍚屾檪(sh铆)鎺у埗澶氬��(g猫)瑷�(sh猫)鍌欍��
銆�銆�12浣嶅垎杈ㄧ巼锛氭彁渚�4096绱氾紙0-4095锛夌殑PWM绮惧害锛岀⒑淇濅簡绮剧窗(x矛)鐨勬帶鍒惰兘鍔涖��
銆�銆�I?C鎺ュ彛锛氭敮鎸佹��(bi膩o)婧�(zh菙n)妯″紡锛�100 kHz锛夊拰蹇�閫熸ā寮忥紙400 kHz锛夌殑I?C閫氫俊锛岀啊鍖栦簡鑸囧井鎺у埗鍣ㄦ垨鍏朵粬涓昏ō(sh猫)鍌欑殑閫ｆ帴銆�
銆�銆�鍙�绶ㄧ▼闋荤巼锛氱敤鎴跺彲浠ラ�氶亷杌熶欢瑷�(sh猫)缃甈WM鐨勮几鍑洪牷鐜�锛岃寖鍦嶅緸绱�24 Hz鍒�1526 Hz锛岄仼鎳�(y墨ng)涓嶅悓鐨勬噳(y墨ng)鐢ㄩ渶姹�銆�
銆�銆�浣庡姛鑰楋細鍦ㄥ緟姗�(j墨)妯″紡涓�锛岄浕娴佹秷鑰楁サ浣庯紝閬╁悎闆绘睜渚涢浕鐨勪究鏀滃紡鎳�(y墨ng)鐢�銆�
銆�銆�鍏�(n猫i)缃�鎸�钑╁櫒锛氬収(n猫i)閮ㄩ泦鎴愪簡25 MHz鐨勫浐瀹氭尟钑╁櫒锛屼笉闇�瑕佸�栭儴鏅�(sh铆)閻樻簮锛岀啊鍖栦簡闆昏矾瑷�(sh猫)瑷�(j矛)銆�
銆�銆�鐫＄湢妯″紡锛氬彲浠ラ�氶亷瑷�(sh猫)缃甅ODE1瀵勫瓨鍣ㄩ��(j矛n)鍏ョ潯鐪犳ā寮�锛岄��(j矛n)涓�姝ラ檷浣庡姛鑰�銆�
銆�銆�鑷�鍕�(d貌ng)閬炲�炲湴鍧�妯″紡锛氬厑瑷遍�ｇ簩(x霉)瀵�鍏ュ�氬��(g猫)瀵勫瓨鍣�锛屾彁楂樹簡鏁�(sh霉)鎿�(j霉)鍌宠几鏁堢巼銆�
銆�銆�澶氳矾寰�(f霉)鐢ㄨ兘鍔涳細閫氶亷瑷�(sh猫)缃�瀛愬湴鍧�鍜屽叏鍛煎彨鍦板潃锛屽彲浠ュ湪鍚屼竴I?C绺界窔涓婇�ｆ帴澶氬��(g猫)PCA9685鍣ㄤ欢銆�
銆�銆�宸ヤ綔闆诲�撹寖鍦嶏細鏀�鎸�2.7V鑷�5.5V鐨勯浕婧愰浕澹擄紝鍏煎�瑰ぇ澶氭��(sh霉)鏁�(sh霉)瀛楃郴绲�(t菕ng)銆�

VCC锛氶浕婧愭�ｆサ杓稿叆绔�锛岄�氬父鐐�3.3V鎴�5V銆�
銆�銆�GND锛氭帴鍦扮��銆�
銆�銆�SCL锛欼?C鏅�(sh铆)閻樼窔銆�
銆�銆�SDA锛欼?C鏁�(sh霉)鎿�(j霉)绶氥��
銆�銆�OUT0 - OUT15锛�16鍊�(g猫)PWM杓稿嚭閫氶亾锛岀敤浜庨�ｆ帴璨�(f霉)杓夊�侺ED銆佽埖姗�(j墨)绛�銆�
銆�銆�OE (Output Enable)锛氳几鍑轰娇鑳界��锛屼綆闆诲钩鏈夋晥銆傜暥(d膩ng)姝ゅ紩鑵虫媺浣庢檪(sh铆)锛屾墍鏈塒WM杓稿嚭灏囪��绂佺敤锛屽彲鐢ㄤ簬绶婃�ュ仠姝㈠姛鑳�銆�
銆�銆�A0, A1, A2, A3, A4, A5锛欼?C鍦板潃閬告搰寮曡叧锛屽彲閫氶亷閫ｆ帴鍒癡CC鎴朑ND渚嗚ō(sh猫)瀹氳ō(sh猫)鍌欑殑I?C鍦板潃锛岄粯瑾�(r猫n)鎯呮硜涓嬪湴鍧�鐐�0x40銆�

PWM淇¤櫉鐢熸垚锛氭瘡鍊�(g猫)PWM閫氶亾閮藉彲浠ラ厤缃�涓�鍊�(g猫)鈥滈枊鍟熲�濇檪(sh铆)闁撳拰鈥滈棞(gu膩n)闁夆�濇檪(sh铆)闁�锛岄�欏叐鍊�(g猫)鏅�(sh铆)闁撻粸(di菐n)姹哄畾浜哖WM鍛ㄦ湡鍏�(n猫i)鐨勯珮闆诲钩鎸佺簩(x霉)鏅�(sh铆)闁撳拰浣庨浕骞虫寔绾�(x霉)鏅�(sh铆)闁擄紝寰炶�屽畾缇╀簡鍗犵┖姣�銆�
銆�銆�闋荤巼瑷�(sh猫)缃�锛氶�氶亷瑾�(di脿o)鏁碢RE_SCALE瀵勫瓨鍣ㄧ殑鍊硷紝鍙�浠ユ敼璁奝WM鐨勮几鍑洪牷鐜�銆�
銆�銆�I?C閫氫俊锛氫富瑷�(sh猫)鍌欙紙濡侫rduino銆丷aspberry Pi銆丒SP32绛夛級閫氶亷I?C绺界窔鐧�(f膩)閫佸懡浠ょ郸PCA9685锛屼互閰嶇疆鍚勫��(g猫)PWM閫氶亾鐨勫伐浣滃弮鏁�(sh霉)銆�
銆�銆�鑷�鍕�(d貌ng)閬炲�炲湴鍧�妯″紡锛氱暥(d膩ng)鍚慞CA9685鐧�(f膩)閫佷竴绯诲垪鏁�(sh霉)鎿�(j霉)鏅�(sh铆)锛屽彧瑕佽ō(sh猫)缃�浜哅ODE1瀵勫瓨鍣ㄤ腑鐨凙I锛堣嚜鍕�(d貌ng)閬炲�烇級浣嶏紝鍣ㄤ欢鏈�(hu矛)鑷�鍕�(d貌ng)閬炲�炲湴鍧�鎸囬嚌锛屽緸鑰屽��(sh铆)鐝�(xi脿n)閫ｇ簩(x霉)鐨勬暩(sh霉)鎿�(j霉)瀵�鍏ャ��

鑸垫��(j墨)鎺у埗锛氱敱浜庤埖姗�(j墨)閫氬父闇�瑕�50 Hz鐨凱WM淇¤櫉渚嗚ō(sh猫)缃�瑙掑��锛孭CA9685闈炲父閬╁悎鐢ㄤ簬姗�(j墨)鍣ㄤ汉銆佽嚜鍕�(d貌ng)鍖栬ō(sh猫)鍌欑瓑闋�(l菒ng)鍩熶腑鐨勫�氳埖姗�(j墨)鎺у埗绯荤当(t菕ng)銆�
銆�銆�LED鐓ф槑锛氱敤浜庤��(di脿o)绡�(ji茅)RGB LED鐕堝付鎴栧柈鍊�(g猫)LED鐨勪寒搴﹀拰椤忚壊锛岀壒鍒ユ槸鍦ㄦ櫤鑳界収鏄庣郴绲�(t菕ng)涓�銆�
銆�銆�闆绘��(j墨)閫熷害鎺у埗锛氬皪浜庣洿娴侀浕姗�(j墨)鎴栨�ラ��(j矛n)闆绘��(j墨)锛孭CA9685鍙�浠ョ敤渚嗚��(di脿o)鏁撮浕姗�(j墨)鐨勯�熷害鎴栦綅缃�銆�
銆�銆�闊抽牷鎺у埗锛氬湪鏌愪簺闊抽牷闋�(xi脿ng)鐩�涓�锛孭CA9685鍙�浠ョ敤浜庢帶鍒堕煶閲忔垨鍏朵粬鍙冩��(sh霉)銆�
銆�銆�瀵�(sh铆)椹�(y脿n)鍜屾暀鑲诧細浣滅偤涓�绋�鏄撲簬浣跨敤鐨凱WM鎺у埗鍣�锛孭CA9685涔熷父鐢ㄤ簬鏁欏��(xu茅)瀵�(sh铆)椹�(y脿n)瀹ゅ拰DIY闋�(xi脿ng)鐩�涓�锛屽公鍔╁��(xu茅)鐢熷拰鎰涘ソ鑰呭��(xu茅)缈�(x铆)闆诲瓙鍜岀法绋嬬煡璀�銆�

澶栭儴闆绘簮锛氶洊鐒禤CA9685鏈�韬�鍙�闇�瑕佽純浣庣殑閭忚集闆诲钩闆绘簮锛堝��3.3V鎴�5V锛夛紝浣嗙偤浜嗛﹨(q奴)鍕�(d貌ng)杓冨ぇ鐨勮矤(f霉)杓夛紙濡傞浕姗�(j墨)鎴栧�氬��(g猫)鑸垫��(j墨)锛�锛屽缓璀颁娇鐢ㄥ柈鐛�(d煤)鐨勯浕婧愮偤OUT0鑷砄UT15渚涢浕銆�
銆�銆�鍘昏�﹂浕瀹癸細鍦╒CC鍜孏ND涔嬮枔鏀剧疆閬╃暥(d膩ng)?sh霉)濞溿儽閾嶅��?锛屼互娓涘皯闆绘簮鍣�鑱插皪PCA9685鎬ц兘鐨勫奖闊裤��
銆�銆�PCB甯冨眬锛氶伒寰�鑹�濂界殑PCB瑷�(sh猫)瑷�(j矛)瀵�(sh铆)韪�锛屼繚鎸佷俊铏熻矾寰戠煭鑰岀洿鎺�锛岄伩鍏嶄笉蹇呰�佺殑璧扮窔浜ゅ��锛岀壒鍒ユ槸灏嶄簬鏁忔劅鐨処?C閫氫俊绶氳矾銆�
銆�銆�闋荤巼閬告搰锛氭牴鎿�(j霉)鍏烽珨鎳�(y墨ng)鐢ㄧ殑闇�姹傞伕鎿囧悎閬╃殑PWM闋荤巼锛屾敞鎰忛亷楂樻垨閬庝綆鐨勯牷鐜囧彲鑳芥渻(hu矛)褰遍熆鏌愪簺瑷�(sh猫)鍌欑殑姝ｅ父宸ヤ綔銆�
銆�銆�淇濊��(h霉)鎺�鏂斤細鑰冩叜鍒板��(sh铆)闅涙噳(y墨ng)鐢ㄤ腑鍙�鑳芥��(hu矛)閬囧埌鐨勭暟甯告儏娉�锛岃ō(sh猫)瑷�(j矛)鏅�(sh铆)鎳�(y墨ng)鑰冩叜澧炲姞蹇呰�佺殑淇濊��(h霉)鎺�鏂�锛屽�傞檺娴侀浕闃�銆佷繚闅�(xi菐n)绲茬瓑銆�