LED zaub yog ib qho ntawm cov khoom siv hluav taws xob nrov tshaj plaws, tab sis txawm tias cov khoom siv dab tsi, yuav muaj ntau yam tsis ua tiav. Yuav ua li cas yog tias nws kim heev thov ib tug neeg kho nws? Peb nyob ntawm no los qhia qee qhov teeb meem thiab kev daws teeb meem.
Ib qho, tag nrho lub vijtsam tsis ci (dub screen).
1. Xyuas seb cov khoom siv hluav taws xob puas muaj zog.
2. Xyuas seb lub teeb liab cable thiab USB cable puas txuas thiab seb nws txuas tsis raug.
3. Xyuas seb lub teeb ntsuab ntawm daim npav xa thiab daim npav txais yuav flashing.
4. Txawm hais tias lub khoos phis tawj tso saib muaj kev tiv thaiv, lossis lub khoos phis tawj tso saib yog xim dub lossis xiav ntshiab.
Ob, tag nrho LED module tsis ci.
1. Cov kev taw qhia kab rov tav ntawm ntau lub LED modules tsis ci, xyuas seb qhov kev sib txuas ntawm cov kab hluav taws xob ntawm lub cev LED module thiab qhov txawv txav LED module txuas nrog, lossis seb lub nti 245 puas yog qhov qub.
2. Cov kev taw qhia ntsug ntawm ob peb LED modules tsis ci, xyuas seb lub hwj huam mov ntawm kab ntawv no puas zoo li qub.
Peb, sab saum toj ob peb kab ntawm LED module tsis ci
1. Xyuas seb kab tus pin txuas nrog 4953 tus pin tso zis.
2. Xyuas seb 138 puas zoo li qub.
3. Xyuas seb 4953 puas kub lossis kub.
4. Xyuas seb 4953 puas muaj qib siab.
5. Xyuas seb tus pins tswj 138 thiab 4953 puas txuas nrog.
Plaub, LED module tsis muaj xim
Xyuas seb cov ntaub ntawv 245RG puas muaj cov zis.
Tsib, sab saum toj ib nrab lossis hauv qab ib nrab ntawm ib qho LED module tsis ci los yog tso saib txawv txav.
1. Seb puas muaj OE teeb liab ntawm 5 ceg ntawm 138.
2. Seb cov cim ntawm 11th thiab 12th ob txhais ceg ntawm 74HC595 yog qhov qub; (SCLK, RCK).
3. Txawm hais tias qhov txuas OE teeb liab yog qhov qub; (qhib Circuit Court lossis luv luv).
4. Txawm hais tias SCLK thiab RCK cov cim ntawm ob kab kab txuas nrog 245 yog qhov qub; (qhib Circuit Court lossis luv luv).
Kev daws:
1. Txuas lub teeb liab OE rau
2. Txuas SCLK thiab RCK teeb liab zoo
3. Txuas qhov qhib Circuit Court thiab txiav qhov luv luv
4. Txuas qhov qhib Circuit Court thiab txiav qhov luv luv
Rau, ib kab ntawm LED module lossis kab ntawm cov khoom siv sib txuas tsis ci lossis pom qhov txawv txav
1. Xyuas seb cov kab teeb liab pins ntawm cov khoom siv sib txuas puas yog soldered lossis ploj lawm.
2. Tshawb xyuas seb tus pin sib raug ntawm kab teeb liab thiab 4953 puas raug txiav lossis luv luv nrog lwm cov cim.
3. Xyuas seb qhov nce thiab nqis resistors ntawm kab teeb liab tsis yog soldered lossis ploj lawm.
4. Txawm hais tias cov kab teeb liab tso tawm los ntawm 74HC138 thiab qhov sib thooj 4953 raug txiav los yog luv luv nrog lwm cov teeb liab.
Kev daws rau kev ua tsis tiav:
1. solder qhov uas ploj lawm thiab tsis muaj vuam
2. Txuas qhov qhib Circuit Court thiab txiav qhov luv luv
3. Sau cov khoom siv uas tsis tau kho thiab txuas cov uas ploj lawm.
Post lub sij hawm: Dec-08-2021
