Capacitive touch screens .Mpɛn pii no ɛma wonya osuahu a ɛkorɔn na ɛyɛ papa sen atetesɛm .Resistive touch screen ahorow a wɔde di dwuma .. Saa nkyerɛkyerɛmu nhyehyɛe yi kyerɛ sɛnea wɔde bata a .Capacitive touch a wɔde kyerɛ ade .de kɔ Sitara AM437X processor no so. Display no wɔ touch screen controller a wɔaka abom a ɛfa AM437X no so denam ne I2C port so.
Nneɛma atitiriw a ɛwom ne nea edidi so yi:
1. Kɔla 7-inch TFT LCD panel a ɛwɔ capacitive touch user interface .
2. WVGA 800x480 Pixel nsusuwii a ɛwɔ 24-bit RGB ntam .
3. LCD interface no bata DSS a wɔaka abom (display subsystem) a ɛwɔ Sitara AM437X processor no ho .
4. .Capacitive touch a ɛwɔ soro no .no ne Sitara AM437X processor no abɔ mu denam I2C so .
5.27 LED fitaa a wɔde di akyi wɔ akyi TPS61081 PWM a wɔhwɛ so LED draiver .
6. Tumi a LCD no hwehwɛ no, TPS65105 linear regulator power supply no na ɛde ma.
7. subsystem reference a edi mũ, a schematics, BOM, design fael ne hardware user guides ka ho, a wɔde adi dwuma wɔ board a wɔaboaboa ano koraa a wɔayɛ ama sɔhwɛ ne nokwaredi.
