Czy wolisz polską wersję strony elektroda?
Nie, dziękuję Przekieruj mnie tamwiwa h265 mini wifi
Key points
• USB 2.0 host port, ≤ 500 mA available
• Supports just one frequency band (2.4 GHz) and WPA/WPA2-PSK (AES) security
• Wi-Fi adapter and USB hub, if needed, must be self-powered
• Firmware updates are obtained from WIWA or loaded from USB
Internal architecture
• SoC: ALi M352x (or successor) with integrated DVB-T/T2 demodulator, H.265/H.264/MPEG2 hardware decoder, 128 MB DDR, 8 MB SPI-NOR flash, embedded Linux 3.x.
• USB 2.0 host is exposed on the side; all external peripherals (Wi-Fi, flash drive, PVR disk) share this single port.
• Because the kernel image is monolithic and closed, only drivers compiled into the firmware are usable; WIWA ships the MT7601U driver only.
Supported Wi-Fi hardware
• MT7601U 2.4 GHz single-stream 802.11n (72 Mb/s PHY, ~35 Mb/s real).
• VID/PID seen by the firmware: 148F:7601, 148F:760b, occasionally 0E8D:760A.
• Typical dongles draw 130-180 mA; stay within the 500 mA USB budget.
Setup procedure (field-proven)
a. Power-off the STB, plug the MT7601 dongle, power-on (cold start refreshes the USB enumeration).
b. MENU → Tools / System → Network → Wi-Fi Manager. “Wi-Fi HW: ON” confirms driver load.
c. Scan → choose SSID → enter WPA/WPA2-PSK key → Connect.
d. DHCP by default; change to static only if the router does not serve addresses.
e. Verify IP in “Network Status”; test with Weather or ping via hidden diagnostics (232 port console).
Typical failure modes & root causes
• “No Wi-Fi device” – Dongle not MT7601U, faulty USB port, or >500 mA current surge.
• “Authentication error” – Wrong passphrase, unsupported WPA3, hidden SSID.
• Connects but no data – DNS mis-configuration, captive portal, MTU>1500 in router, outdated firmware (pre-2022 builds choke on TLS1.2 sites).
• IPTV freezes – USB bandwidth saturation when PVR recording is active; use powered hub or switch recording medium to SD-card via USB reader (lower current).
Performance boundaries
• H.265 1080p broadcast ≈ 3.6 Mb/s; MT7601U handles this with ample margin.
• OTT streams above 8–9 Mb/s may stutter due to CPU copy overhead, not RF throughput.
• 4K files play only from local storage; HEVC Main-10 not supported.
Electrical / thermal considerations
• DC in: 5 V 1.5 A; total USB budget 500 mA.
• Continuous Wi-Fi TX can raise enclosure temperature by 12-15 °C; maintain airflow when the unit is hidden behind the TV.
• Since Poland and several EU countries finalised DVB-T2/HEVC switchover in 2022-2023, WIWA keeps the H.265 Mini firmware up-to-date; the March-2024 build (v1.2.36) adds TLS1.2 for weather feed and fixes MTU bug.
• User forums confirm newer Realtek RTL8821CU dual-band dongles are still unsupported; no roadmap from WIWA for 5 GHz.
• Market movement: low-cost HDMI-stick receivers with built-in Wi-Fi (Caravan TV kits) are emerging; engineers can expect SoCs with on-chip 802.11ac by late-2024, rendering external dongles obsolete.
• Why MT7601 only?
The driver is < 200 kB and was released under GPL, easy for vendor to integrate; other drivers (RTL8192, Atheros) exceed flash budget.
• 2.4 GHz limitation: single antenna design, less metal shielding needed, better range behind TV sets.
• Security: The kernel patch-set supports WPA2-PSK (AES); TKIP and WPA3 libraries are absent.
Example: Calculating required link rate for a 6 Mb/s IPTV stream
\[ R_{\text{PHY}} = \frac{6\,\text{Mb/s}}{\eta \cdot (1-\text{Overhead})} \]
Assuming efficiency η = 0.35 for 802.11n 1×1 and 30 % MAC/PHY overhead → RPHY ≈ 24 Mb/s, comfortably within 65 Mb/s single-stream capability.
• Firmware is closed; modifying kernel or adding drivers violates EULA and may breach CE conformity.
• Wi-Fi operation must comply with local ETSI EN 300 328 (EU) / FCC Part 15 (US) power limits; MT7601 dongles are certified at ≤ 20 dBm EIRP.
• IPTV playlists may carry copyrighted content; verify licensing before rebroadcast or public display.
• Always buy “STB-compatible MT7601” dongle; look for WIWA logo or explicit chipset marking.
• If simultaneous PVR and Wi-Fi are needed, use a powered USB Y-hub (STB port provides only 5 V 0.5 A).
• Keep router on WPA2-PSK/AES, 20 MHz channel width, channels 1/6/11 to avoid interference behind TV.
• For fleet deployment (hotels, caravans) set static IPs and lock GUI with parental PIN to avoid user mis-settings.
Potential challenges & mitigations
• Hidden installation – add 10 cm USB extension so Wi-Fi dongle clears metal TV chassis.
• Firmware recovery – keep latest .bin on FAT32 stick, hold MENU during power-up to force USB update.
• Not compatible with ATSC (North America), ISDB-T (Japan), DTMB (China).
• Future YouTube/API changes can disable built-in player at any time.
• No HDR, no HEVC Main-10, no Dolby Digital+; audio down-mixes to PCM.
• Evaluate RTL8723BS or ESP32-SDIO as low-power dual-band replacements; compile driver footprint analysis.
• Investigate adding MQTT agent over BusyBox for remote monitoring in hospitality installations.
• Explore SoCs with integrated DVB-T2 + 802.11ac (e.g., Amlogic S4 family) for next-gen ultra-mini receivers.
Resources
• WIWA support: https://www.wiwa.info.pl (firmware / accessory list)
• MT7601U Linux driver source: https://github.com/porjo/mt7601
• Community forum (PL): https://www.elektroda.pl – thread 3896415
The WIWA H.265 Mini is a plug-behind-TV DVB-T2/HEVC decoder that gains Internet capabilities only when a USB Wi-Fi dongle based on the MT7601U chipset is attached. Configuration is straightforward via the Network menu; nevertheless, compatibility is strict, operation is confined to 2.4 GHz, and power/thermal margins are tight. For robust performance use a verified dongle, maintain WPA2-PSK security, and keep the firmware current. While adequate for basic IPTV and updates, the solution is bandwidth- and feature-limited—engineers planning new designs should consider SoCs with embedded dual-band Wi-Fi and greater flash budget for future-proofing.
