LETry
Let children try
 Letry Robot
We are looking for agent around the world
Taiwan ---Korean - - -Contact Us 		Letry Robot was designed
by Taiwan teachers
at Tungnan University
200 schools use Letry robot
20 Electronic experiments
Sound, Light, Heat, Infrared
ALL in ONE, Reusable
Creative, Challenge, Fun
A new product for education

Patent: USA,Taiwan,China
Photos of Class

 Handbook (A001 and A002)

Letry Robot A001

Letry Robot A002


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Our name have changed from TNIT to TNU
Please replace TNIT with TNU in our web address
Please use www.ae.tnu.edu.tw/~ae008
The old name will not works after 1 August

 A-001 Basic course
 A001=1 Toy Car + 1 Handbook + 1 bread board + 1 electronic component package
$ 30 USD + fee for delivery from Taiwan
Paypal--- letry2@hotmail.com
Simple electronic circuit. Basic logic IC.
A new robot kit. For ages 10 and above.
No programming required. No soldering required.
Letry Robot is controlled by a bread board.
One Letry Robot kit A001 includes all the following 7 lessons:
Lesson 1,2 Basic theory and components
Battery, Resistor, LED,Series and parallel of resistors, Ohm's law, Capacitor, Light sensor(CdS), Light on LED by shadow.

Lesson 3 Light,Temperature sensors and control
Transistor, Relay, Inverter(CMOS 4069),Robot car with light sensor, Shadow follower, Temperature sensors(Thermistor), Heat and run.

Lesson 4 Infrared sensor and control
Robot car with Infrared sensor, Line tracer, detects obstacle and turn left, Robot car never fall outside the desk.

Lesson 5 Sound sensor and control
Timer(CMOS 4098), Robot car with sound sensor(microphone), Claps and turn

Lesson 6,7 Creative Challenge , Cooperation and Competition
Creative control, Cooperation of 2 bread-boards, Challenge ,Funny Competition.


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A-002 OR gate , AND gate
 A002=1 Toy Car + 1 Handbook + 2 bread boards + 2 electronic component packages + AND gate + OR Gate
$ 40 USD
Lesson 8 OR , AND Logic Gate
CMOS4071(OR gate),CMOS4081(AND gate), More creative control


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B-001 Microcontroller
 B001=A002 + 1 AT89C2051 package
$ 45 USD
Use AT89C2051-12 or PIC16F***
Control Robot car with program


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B-002 Advanced course
 B002=B001 + 1 step motor + 1 electronic component package and 1 handbook for advanced course
$ 60 USD
Lesson 9 Relay and Ladder diagram

Lesson 10 Basic Logic elements and experiments

Lesson 11 Flip-Flop,Timer,Counter

Lesson 12 Temperature sensor and Operation Amplifier

Lesson 13 PWM method

Lesson 14 Control the Step Motor

Lesson 15 Two Phase Driver of Step Motor

Lesson 16 Creative control and challenge


Chiping Tsao ---The inventor of Letry Robot

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Movies of Letry Robot

Never fall off the desk

Trace Black Line

Move on bridge (1)

Move on bridge (2)

Move inside black boundary

Challenge 1

Challenge 2

Avoid obstacle

Follow shadow

Clap and Turn


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Letry Lab. Department of Mechatronic Technology ,Tungnan University
No. 152, SEC.3, PeiShen Rd., ShenKeng, Taipei, 222 Taiwan.
TEL (886) 910012353 FAX (886)2-22182095
letry2@hotmail.com , tcping@mail.me.tnu.edu.tw
http://www.ae.tnu.edu.tw/~ae008
http://www.letry.net
http://www.letry.com.tw