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SMD Integrated Circuit

 

 

Learn to identify the first foot patch of IC

 

 

 
 
 

Note that there 
is a small 
concave point

 

 
 
 
 

 

The bottom of the 
small point is 
the first foot

 

 

 
 
 
 
 

On the PCB, this pad 
connects to the first pin 
of the LM339

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

SMD integrated circuit L9110S

 

 

 

 

Note that there 
is a small 
concave point

 

 
 
 
 
 

 

The bottom of the 
small point is 
the first foot

 

 
 
 
 
 
 
 
 
 
 

 

Содержание D2-6

Страница 1: ...n achieve forward but also can be achieve fall back Lithium batteries rechargeable reduce the cost of use You need to prepare your own battery this kit has no battery Feature Operating voltage DC 3 7V...

Страница 2: ...70K 1 If you are not sure the resistance you can use a multimeter to measure before the installation Electrolytic capacitor Electrolytic capacitor long legs for the cathode short leg for the negative...

Страница 3: ...Note that there is a small concave point The bottom of the small point is the first foot On the PCB this pad connects to the first pin of the LM339 SMD integrated circuit L9110S Note that there is a...

Страница 4: ...ion to the IC Block has a semi circular small gap This mounting gap should be aligned with the semicircular notch on the top of the PCB Single chip IC insert into the seat we must pay attention to the...

Страница 5: ...Note that there is a root fly wire connected with the resistance of the shear pin Backside of the picture...

Страница 6: ...www banggood com Two pairs of infrared diodes for tracking the top and the caster vertex distance is about 5MM 2B put a three way sleeve into the axle...

Страница 7: ...www banggood com 2C Insert a washer into the steel shaft next to the 3 way sleeve...

Страница 8: ......

Страница 9: ...if the gap is too small will cause the wheel is not The center hole and the axle of the three way sleeve should be parallel to each other otherwise the wheel...

Страница 10: ......

Страница 11: ...Solder the motor power cord The following is the debug section Infrared sensitivity adjustment...

Страница 12: ...t emitting diodes are used for infrared reception sensitivity indication Adjusts the sensitivity of the two infrared rays used for tracking Remove the microcontroller Car flat first a pair of infrared...

Страница 13: ...rared can also be received causing interference The sensitivity of the two sets of infrared rays used for obstacle avoidance is adjusted flat car erected a white paper in front about 5CM or so One set...

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