https://item.taobao.com/item.htm?spm=a1z10....id=544757439045

hey guys anyone using openwrt with raspberry pi? trying to figure out how to work lcd 1602 using openwrt on raspberry pi...

zero w still under certification approval

https://www.cytron.com.my/c-442-raspberry/c...oard/p-rpi-zero zero is here though

managed to buy a pi zero w from cytron.

its not too hard

hardware wise you need car audio bracket/mount, 2DIN , on the RPi you will need a DAC Amp hat like this

https://www.seeedstudio.com/JustBoom-Amp-HA...-Pi-p-2846.html

If you have Car amp already then you just get a cheaper DAC hat without amp. If you dont have amp you cant drive car speakers.

For RPi you use RuneAudio , if you want to play games then dual boot with Retropi.

The problem is with the single HDMI slot unless you have the official 7" display. If you do the HDMI can pull to roof monitor. If not then you forgo the option.

Make sure your Hat support 12V stepdown ya. Also make sure you have on/off switch, otherwise it drain ur battery since you dont connect to IGN / ACC wire.

also make sure you pull out the USB cable , after install it's impossible to access them . If you are installing into a car with USB port like Almera the connector is different (car Head unit usually use USB B connector from behind ) so u need converter.

This post has been edited by spacelion: Jul 5 2017, 01:41 PM

I've only able to get the Zero version

Hey SBC guys~ Tinkerboard can buy already

I purchased 1 pcs @ http://components.ubitap.com/tinkerboard

Official thread : https://forum.lowyat.net/topic/4348620

This post has been edited by Positve_Guy: Jul 5 2017, 02:27 PM

Thanks for feedback.... End up i buy Android car player now can able to use Kodi, and play games

ya, still the best option, the thing is i cannot tap reverse camera to the raspberry, so i gave up as well. Ideally can get a rca to audio jack converter and write a script whereby when reverse cam turn on, will switch to the input .... but didnt manage to do so.

my rpi now used to log can codes for personal alarm

Hi Guys!

1) Already bought a Rasberry Pi 3B. Where to find a power adapter? Any link?

2) On others note, I would like to learn Arduino, anyone have experience for Arduino Starter Kits to buy?

I'm my first baby step to learn both great products.

Just use your handphone charger (at least 5v1A) will be good enough. Nowadays, 5v2A adapter for handphone also very common.

wow built a radio by raspberry?
customize like pc?

Yup.

It will cost cheaper than most Head Units , but 1 problem - lack of inputs , you dont have 2nd HDMI for roof monitor and you don't have RCA inputs for reverse camera. If you can live with that, then it's a good project.

RPi = RM130
I2S DAC Hat = USD35 = RM140
RPi 7" display with touch = RM300

you can try to take reverse camera input with rca to 3.5mm jack - I didnt experiment that far

This post has been edited by spacelion: Jul 28 2017, 04:41 PM

haha
wtf seem like just building a pc
but i not sure how to shouldering and the installation os part

cause raspberry like different compare to pc

no need soldering

os installation got lots of guides, just flash into micro sd, then connect to the rpi and run commands until it's done.

This post has been edited by spacelion: Jul 28 2017, 04:47 PM

haha
are u serious XD
haha

err components now are modular nowadays so no need soldering anymore.
just connect, disconnect, connect.....

almost got a raspberry pi last time but went for android tv player bcs to lazy to play around with it.

Hi RPi gurus and enthusiasts!

Just got an RPi3B delivered and spent a couple of hours hooking it up, installing Raspian and generally basking in the total geek of it. Haven't been this excited over a dinky computer since my first Sinclair ZX Spectrum (yes, do the math ... actually *that* old).

The main purpose of getting it was to try to log and eventually automate my home coffee roasting rig. For those who haven't looked into coffee roasting, in a nutshell it's apply heat to green coffee beans until they turn brown. Of course there can be a ton of artisanal art-vs-science stuff flying around, but the crux of it is burning beans few steps short of setting a fire.

The definitive reference software for coffee roasting is Artisan, which is free and Open Source, and lo and behold, there is a RPi version of it!

So now the challenge is getting it hooked up to the coffee roaster. I'm using a very basic stovetop drum roaster from Korea called the Kaldi Wide, which IMHO extremely decent for the price. However, it is a totally manual setup (even the thermometer is analogue) so true to the geek in me, almost from the day it was unboxed I've been modding and gearing up for a totally automated roaster, with the RPi at the core.

The main inputs coming in from the coffee roaster will be two temperature sensors (one for the beans and one for the heat source). Before I got the RPi I got a Mastech MS6514 digital thermometer, which actually cost more than the RPi (duh!). The small upside is that this device has a USB output which I understand can be interfaced to the RPi. I have hooked it up to my Ubuntu notebook and with very minimal config managed to get it to feed data to the Artisan software. So in the short term, I intend to do the same to interface to the RPi. In the longer run, I intend to hook up a couple of MAX31855 chips to hook up the thermocouples directly.

The main control output from the RPi to the coffee roaster will be to adjust/control the heat source. The idea is to continually adjust the level of heat so that the beans will go up in temperature according to a predetermined pattern (known as a 'profile'). Doing this manually requires a lot of experience with the roaster and the specific beans (each bean batch will have difference characteristics), and it is especially difficult to repeat a profile exactly.

Bigger/more expensive roasters have PID temperature controllers to manage the heat source, but the latest version of the Artisan software actually has a PID built in. Yay!!

So now comes the question: I need to control the AC pumping the heatsource (which is a heat gun, BTW). Currently I'm using an SCR Voltage Regulator, which looks like is controlled by a simple potentiometer. I rather not hack the voltage regulator, in light of the high power going through it (up to 4KW) so instead I'm looking at a stepper motor to twist the potentiometer. I have found some cheap stepper motors that come with ULN2003 driver boards meant for Arduino.

Will these work with RPi? Any pointers on how to hook them up?

Much much thanks in advance!

SOLD -

This post has been edited by TehO'Ice: Sep 30 2017, 04:36 PM

i've to say, your project is really interesting! i'd love to see photos of your equipments and set up (if any!)

my rpi project so far is only attempts to make led display clock + temperature, i got the stuff but haven't got the time (and motivation) to actually tinker around with it.