Friday, June 14, 2019

Using Raspberry Pi 3B as a general purpose computer

Last month I put together my Raspberry Pi desktop and tried using it as general purpose computer. Previously I was using my "long in the tooth" Lenovo G480 as main computer.
Now what's changed with Raspberry Pi? Actually not much really. For couple of weeks I was using older Raspbian and it was quite unfulfilling. For video playback there was only OMX Player which did not do windowed playback. Web browsing was bit slower than I liked. And system was not fast. It lagged somewhat.
Then I got latest Raspbian Stretch downloaded. And the difference was between night and day. The desktop is faster. Web browsing is smoother. VLC is provided. Full HD video playback is working. Office is working fine as well. Now, I know the 1GB RAM is actually not a lot. In fact on the Lenovo, with even 2GB RAM, things get creepy crawly after opening 2-3 tabs. So here I'm restricting myself to only 1-2 tabs. And overall it's working fine. One thing that did not work out was NTFS partitions were mounted as read-only. And looks like it's a driver level limitation. Now I have been writing to NTFS partitions successfully since last 2-3 years on desktop linux. So I don't know what the limitation is. Will need to R&D on this. Besides this I did not find any other limitation. Sound works fine over Analog-out and HDMI. The power consumption of this system has to be peanuts. And basically that's all. 
So I can say that with Raspbian Stretch, my goal of using a Raspberry Pi as a lightweight workstation cum go-to desktop is fulfilled. 

Monday, June 10, 2019

Redmi Note 7 Pro 4GB bought

Xiaomi Redmi Note 7 Pro

    Released 2019, March
    186g, 8.1mm thickness
    Android 9.0; MIUI 10
    128GB storage, microSD card slot Hybrid SIM slot
    6.3" 1080x2340 pixels
    48MP 2160p
    4/6GB RAM
    Snapdragon 675
    4000mAh Li-Po

Network Technology
GSM / HSPA / LTE
Launch Announced 2019, February
Status Available. Released 2019, March
Body Dimensions 159.2 x 75.2 x 8.1 mm (6.27 x 2.96 x 0.32 in)
Weight 186 g (6.56 oz)
Build Front/back glass (Gorilla Glass 5)
SIM Hybrid Dual SIM (Nano-SIM, dual stand-by)
Display Type IPS LCD capacitive touchscreen, 16M colors
Size 6.3 inches, 97.4 cm2 (~81.4% screen-to-body ratio)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
Protection Corning Gorilla Glass 5
Platform OS Android 9.0 (Pie); MIUI 10
Chipset Qualcomm SDM675 Snapdragon 675 (11 nm)
CPU Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
GPU Adreno 612
Memory Card slot microSD, up to 256 GB (uses shared SIM slot)
Internal 128 GB, 6 GB RAM or 64 GB, 4 GB RAM
Main Camera Dual 48 MP, f/1.8, (wide), 1/2", 0.8┬Ám, PDAF
5 MP, f/2.4, depth sensor
Features Dual-LED flash, HDR, panorama
Video 2160p@30fps, 1080p@30/60/120fps, (gyro-EIS)
Selfie camera Single 13 MP
Features HDR
Video 1080p@30fps
Sound Loudspeaker Yes
3.5mm jack Yes
  Active noise cancellation with dedicated mic
Comms WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth 5.0, A2DP, LE
GPS Yes, with A-GPS, GLONASS, BDS
Infrared port Yes
Radio FM radio, recording
USB 2.0, Type-C 1.0 reversible connector
Features Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Battery   Non-removable Li-Po 4000 mAh battery
Charging Fast battery charging 18W (Quick Charge 4)
Misc Colors Nebula Red, Neptune Blue, Space Black
Models Redmi Note 7 Pro
Price About 260 EUR

Got 4GB version for 14K on 31/05/2019.