Aguade ho nkyerɛkyerɛmu .
-Raspbreey Pi 21.5 inch touch screen no wɔ hɔ a ɛne HDMI ne USB bɛyɛ adwuma yiye esiane nyansahu nhyehyɛe a wɔayɛ no kɛse ne agyapade pa nso, a ɛma ahotɔ ne nwonwa a wɔde di dwuma wɔ osuahu mu.
-Ɔdefoɔ-adamfofa, ɛyɛ mmerɛ sɛ wode bedi dwuma wɔ dwumadie a ɛnyɛ den mu sɛ wobɛtumi adi afiri no so kɛkɛ denam screen no a wobɛka so. Na ɛyɛ nea ɛnyɛ nea atwa yɛn ho ahyia sɛ ade biara a epira, hua biara nni mu ne UV mframa biara nni mu.
-Ɛyɛ nea wotumi gyina ano wɔ ɔsom nkwa nna tenten mu sɛ wobetumi de adi dwuma mpɛn pii, na ɛma ɛyɛ nea ɛho ka sua. Esiane sɛ nsu, ɔporɔw ne mfutuma gyina ano nti, ɛnyɛ den sɛ wobɛhwɛ so na ɛho tew, na ɛtrɛw ne nkwa nna mu kɛse.
Aguadeɛ no tumi ne 21.5-inch brands display no nyinaa dwumadie hyia ne 1920 * 1080 resolution a ɛwɔ view angle a ɛyɛ pɛpɛɛpɛ, a ɛtumi ne VGA anaa HDMI interface draiver board no hyia, ne capacitive screen USB interface,adeɛ no bɛtumi akɔ raspbreey PI so denam USB ne HDMI interface so.
-Raspbreey PI 21.5 inch touch screen a yɛn adwumakuw no de gyinapɛn a ɛkorɔn ayɛ no yɛ nea mfaso wɔ so a wɔde di dwuma kɛse wɔ da biara da asetra mu, te sɛ mfiri a ɛyɛ nyansa, nnuruyɛ nnwinnade, kɔmputa ne nea ɛkeka ho.
-Wɔnam tumi adansedie a ɛwɔ CE ne ISO9001 so na ɛyɛeɛ sɛ ɛwɔ ahoɔden a ɛyɛ papa.
| Nhwɛsode no nɔma . | HX2151706 na ɛwɔ hɔ. |
| Adeban | Grahowlet . |
| Kɛseɛ | nsateakwaa 21.5 . |
| Ɔhyew a ɛyɛ adwuma . | 0℃- 50 abodin krataa . |
| Ɔhyew a wɔde sie . | -10℃- 60 abodin krataa . |
| Outline dimension . | 510.84(w)x309.85(h)x14.15(d) mm . |
| Beae a wobɛhwɛ . | 477.64(w)x269.11(h) mm . |
| Active area . | 476.06(w)x267.79(h) mm . |
| Mmoa nhyehyɛe ahorow . | Windows/Android/Linux ne nea ɛkeka ho. |
| Waranti . | Afe 1 . |
| Nsɛm a ɛfa nkitahodi ho . | IIC/USB . |
| Nhyehyɛeɛ | G+G |
| Controller IC . | Ilitek . |
| Touch points . | 10 nsɛntitiriw . |
| Nneɛma a ɛda adi pefee . | Ɛboro so anaasɛ ɛne 85% yɛ pɛ . |
| Nneɛma a ɛwɔ soro a ɛyɛ den . | Ɛboro so anaasɛ ɛne 6H yɛ pɛ . |
| Tumi a ɛma ahoɔden . | 2.8V - 3.3V |
| Nhyehyɛeɛ | 1920X1080 |
| Nsɛm a ɛfa nkitahodi ho . | LVDS/HDMI/VGA . |
| Luminance . | 250 cd/m2 na ɛwɔ hɔ. |
| Sɛ wohwɛ angle . | NYINAA |
Mfaso a ɛwɔ so .
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Ɛka a wɔbɔ-ɛyɛ adwuma yiye . Nneɛma a ɛwɔ hɔ-Adeɛ a ɛyɛ fɛ . | Nneɛma a wɔyɛ no ntɛmntɛm . Nea eye kyɛn so wɔ-adetɔn mu. | Nneɛma a wɔde ma a ɛyɛ den . Nkwa nna tenten kyinhyia . | Mfiridwuma mu mmoa a emu yɛ den . Bere tiaa a wɔde bua . | Nnwuma a ɛtrɛw a ɛfa nnwuma ho . Ano aduru ahorow a ɛho akokwaw . |
Yɛn adwumakuw no .
Hangzhou Grahowlet Technology yɛ adwuma a ɛkɔ akyiri a ɛde capacitive touch screen module ne TFT LCD display ma nnwuma ahorow. Sɛnea ɛbɛyɛ a wobetumi adi wiase nyinaa adetɔfo ahwehwɛde ahorow ho dwuma no, Hongxiao de nneɛma ahorow nyinaa a wɔahyehyɛ no te sɛ g + g, g + f (g + f + f ),p + g, ne nea ɛkeka ho ne mfiridwuma mmoa nhyehyɛe ahorow te sɛ Cypress , Atmel, Eeti, Focaltech, Goodix ne nea ɛkeka ho sɛnea application tebea ahorow te. Yɛde ano aduru a ɛne adetɔfo nyinaa touch screen ahiade hyia ma na yɛyɛ nneɛma a egyina mfiridwuma ahorow pii so. Yɛasi yɛn bo sɛ yɛde kan-adesuakuw nneɛma ne adwumayɛfo mfiridwuma ho nnwuma bɛma wiase nyinaa adetɔfo wɔ touch industries mu. Yɛn nneɛma no yɛ ahoɔden a ɛkorɔn ne anti-interference adwumayɛ na wɔde di dwuma wɔ nnwuma ahorow a ɛwɔ tebea horow a ɛyɛ den na ɛyɛ den mu.
Mfiridwuma mu nsɛmmisa ne mmuae .
Q: Dɛn ne nnyinasosɛm a ɛfa capacitive touch screen ho a ɛbɛma woanya multi-touch?
A: Sɛ nsateaa no ka capacitive screen no a, ɛka coupling a ɛda electrode abien no ntam a ɛbɛn touch point no, na ɛnam so sesa capacitance a ɛda electrode abien no ntam no. Sɛ wohu mutual capacitance no a, lateral electrodes no yi excitation pulse signals no nnidiso nnidiso, na longitudinal electrodes no nyinaa nya signals bere koro mu, sɛnea ɛbɛyɛ a wobetumi anya capacitance values a ɛwɔ lateral ne longitudinal electrodes no ntam nyinaa, ɛne sɛ, capacitance a ɛwɔ abien{1}}dimensal plane no nyinaa mu. Sɛnea abien-dimensional capacitance nsakrae data a ɛwɔ touch screen no kyerɛ no, wobetumi abu touch point biara coordinates ho akontaa. Ɛne sɛ, wobetumi abu multi-point coordinates ankasa no ho akontaa na ama woahu multi-touch;
Q: Ɛfa capacitive screen a yɛde redi dwuma seesei no ho no, power supply interference haw no yɛ aniberesɛm paa. Dɛn na ɛsɛ sɛ yɛyɛ na ama yɛayi anyinam ahoɔden a ɛde ba no afi hɔ?
Sɛ yɛde scanning frequency to nkyɛn sɛnea ɛbɛyɛ a wobɛkwati dede frequency a ɛwɔ power supply no mu a, ma sign-to{1}}dede ratio a ɛwɔ screen no mu no nyɛ yiye? So ɔkwan foforo bi wɔ hɔ?A: Sɛ yehu fi mprempren nsɛm nyinaa mu a, tumi a wɔde ma no ntwitwiridii no yɛ nea wɔde ahyɛ mu titiriw-size TP (7inch anaa nea ɛboro saa), na yɛwɔ ano aduru a edidi so yi:(1) Paw tumi a ɛfata a wɔde ma. Eyi ho hia yiye na ɛyɛ ɔkwan a etu mpɔn na ɛyɛ mfitiasede sen biara a wɔfa so siesie tumi a wɔsɛe no;(2) frequency hopping. Fa spectrum analyzer no hwehwɛ beae a common mode interference ahoɔden a ɛwɔ adapter no mu no sua, na afei fa TX scan frequency no si saa beae yi so denam software nhyehyɛe so, a ebetumi adi ntwitwiridii no so yiye. Sɛ ntwitwiridii wɔ frequency band mũ no nyinaa mu a, wɔkamfo kyerɛ sɛ wogyae adapter no;(3) ma sɛnkyerɛnne ne dede ratio no nyɛ yiye. Wɔ TP (7.0inch anaa nea ɛboro saa) a edi kan no mu no, susuw ho sɛ wode ade a ɛba fam-impedance surface-rent material bɛma RX sɛnkyerɛnne kwan no bedi dwuma na wode nhyehyɛe a ɛwɔ abien-afã trace no adi dwuma. Bɔ mmɔden sɛ wobɛhwɛ channel resistances nyinaa so wɔ 10K mu, a ebetumi adi tumi a ɛde ba no so wɔ ɔkwan a etu mpɔn so. ;(4) Ɛsan nso yɛ yie sɛ wobɛsesa charger no, ama algorithm filtering no akɔ soro, na woafa cypress, eeti, ILI nhyehyɛe a ɛwɔ anti{19}}interference adwumayɛ a ɛyɛ den.
Tags a ɛyɛ hyew .: RaspBreey Pi 21.5 inch touch screen, China Raspbreey Pi 21.5 inch touch screen a wɔde ma, wɔn a wɔyɛ, adwumayɛbea
