Cov txheej txheem:

USB48G - Upcycle Broken Hp48 Keyboard: 7 Kauj Ruam
USB48G - Upcycle Broken Hp48 Keyboard: 7 Kauj Ruam

Video: USB48G - Upcycle Broken Hp48 Keyboard: 7 Kauj Ruam

Video: USB48G - Upcycle Broken Hp48 Keyboard: 7 Kauj Ruam
Video: USB48G - upcycle broken hp48G keyboard 2024, Kaum ib hlis
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USB48G - Hloov kho dua tshiab Hp48 Keyboard
USB48G - Hloov kho dua tshiab Hp48 Keyboard

Ib txoj hauv kev coj los ua haujlwm rau qhov tawg hp48.

Rov qab siv cov keyboard thiab ua kom nws ua haujlwm raws li tus qauv usb keyboard.

Kuaj: Txheeb xyuas youtube:

Cov vis dis aus qhia cov keyboard ntsaws rau hauv Windows 10 khiav EMU48+.

Kauj ruam 1: Qhib Hp48

Qhib Hp48
Qhib Hp48

Qhib hp48 tsis yooj yim li. Ceev faj, koj pheej hmoo ua rau koj poob.

Kuv pom cov ntaub ntawv hauv qab no muaj txiaj ntsig:

documents.epfl.ch/users/f/fr/froulet/www/HP…

www.hpcalc.org/hp48/docs/opening/

users.ju.edu/hduong/repair/

Kauj ruam 2: Txheeb xyuas cov Txuas

Txheeb xyuas Cov Txuas Txuas
Txheeb xyuas Cov Txuas Txuas
Txheeb xyuas Cov Txuas Txuas
Txheeb xyuas Cov Txuas Txuas

Cov khoom sib txuas ntawm kuv cov keyboard muaj kev tiv thaiv ntawm

* 8 kOhm kaw thiab

* 2 MOhm qhib.

hp48 Backside Circuit:

hp48 Backside Circuit:

Cov Lus Qhia: A9, A10, A11, A12, A13, A14, A15, A16, AR17

Cov tswv yim: A0, A1, A2, A3, A4, A5, ON-keyboard

Kauj Ruam 3: Cov Lus Sib Tham

Cov lus sib tham
Cov lus sib tham

grack.com/writing/saturn/saturn.txt

Kauj Ruam 4: V-USB-Firmware-Only USB Driver rau Atmel AVR Microcontrollers

Txoj haujlwm tau tsim los ntawm: https://www.obdev.at/products/vusb/index-de.html thiab

Ua tsaug rau qhov tau coj USB mus rau atmega tsev neeg

Kauj Ruam 5: Thawj Circuit

Thawj Circuit
Thawj Circuit
Thawj Circuit
Thawj Circuit
Thawj Circuit
Thawj Circuit

Daim duab qhia pom thawj zaug. Nws ua haujlwm tawm, yog li ntawd cov xov hlau-tsis tau hloov pauv …

Lub usb plug subsitutes lub serial ntsaws. ACRISP Plug nyob tom qab IR-npog.

Kauj ruam 6: Coding & Uploading

Coding & Uploading
Coding & Uploading
Coding & Uploading
Coding & Uploading
Coding & Uploading
Coding & Uploading

Txuas cov cai. Nws ua haujlwm hauv AVR Studio4.

Kauj Ruam 7: Xeem

Kev Xeem
Kev Xeem

Cov keyboard zoo li cov keyboard txheem thiab tsis xav tau tus tsav tsheb ntxiv.

Pom zoo: