[uncensored-r/Bitcoin] Chirimbolito - A Bitcoin address monitoring tool built with a Raspberry Pi and a LCD display
The following post by elmonomario is being replicated because some comments within the post(but not the post itself) have been silently removed. The original post can be found(in censored form) at this link: np.reddit.com/ Bitcoin/comments/7t0e58 The original post's content was as follows:
05-20 03:52 - 'Could one use the case that comes with a screen already attached? Seen it on Ali . / 3.5 inch display 3.5" LCD TFT Touch Screen Display for Raspberry Pi 2 / Raspberry Pi 3 Model B Board Acrylic Case Stylus [link] (from Ali...' by /u/TexasChorizo removed from /r/Bitcoin within 38-48min
''' Could one use the case that comes with a screen already attached? Seen it on Ali . 3.5 inch display 3.5" LCD TFT Touch Screen Display for Raspberry Pi 2 / Raspberry Pi 3 Model B Board Acrylic Case Stylus [link]1 (from AliExpress Android) ''' Context Link Go1dfish undelete link unreddit undelete link Author: TexasChorizo 1: *.a*iexpre**.c*m/U3aIRF*B Unknown links are censored to prevent spreading illicit content.
Hello, I’ve been trying to decide on a FPGA development board, and have only been able to find posts and Reddit threads from 4-5 years ago. So I wanted to start a new thread and ask about the best “mid-range” FGPA development board in 2018. (Price range $100-$300.) I started with this Quora answer about FPGA boards, from 2013. The Altera DE1 sounded good. Then I looked through the Terasic DE boards. Then I found this Reddit thread from 2014, asking about the DE1-SoC vs the Cyclone V GX Starter Kit: https://www.reddit.com/FPGA/comments/1xsk6w/cyclone_v_gx_starter_kit_vs_de1soc_board/ (I was also leaning towards the DE1-SoC.) Anyway, I thought I better ask here, because there are probably some new things to be aware of in 2018. I’m completely new to FPGAs and VHDL, but I have experience with electronics/microcontrollers/programming. My goal is to start with some basic soft-core processors. I want to get some C / Rust programs compiling and running on my own CPU designs. I also want to play around with different instruction sets, and maybe start experimenting with asynchronous circuits (e.g. clock-less CPUs) Also I don’t know if this is possible, but I’d like to experiment with ternary computing, or work with analog signals instead of purely digital logic. EDIT: I just realized that you would call those FPAAs, i.e. “analog” instead of “gate”. Would be cool if there was a dev board that also had an FPAA, but no problem if not. EDIT 2: I also realized why "analog signals on an FPGA" doesn't make any sense, because of how LUTs work. They emulate boolean logic with a lookup table, and the table can only store 0s and 1s. So there's no way to emulate a transistor in an intermediate state. I'll just have play around with some transistors on a breadboard. UPDATE: I've put together a table with some of the best options:
A very simple FPGA development board that plugs into a Raspberry Pi, so you have a "backup" hard-core CPU that can control networking, etc. Supports a huge range of pmod accessories. You can write a program/circuit so that the Raspberry Pi CPU and the FPGA work together, similar to a SoC. Proprietary bitstream is fully reverse engineered and supported by Project IceStorm, and there is an open-source toolchain that can compile your hardware design to bitstream. Has everything you need to start experimenting with FPGAs.
Xilinx Zynq 7-Series SoC - ARM Cortex-A9 processor, and Artix-7 FPGA. 125 IO pins. 1GB DDR2 RAM. Texas Instruments WiLink 8 wireless module for 802.11n Wi-Fi and Bluetooth 4.1. No LEDs or buttons, but easy to wire up your own on a breadboard. If you want to use a baseboard, you'll need a snickerdoodle black ($195) with the pins in the "down" orientation. (E.g. The "breakyBreaky breakout board" ($49) or piSmasher SBC ($195)). The snickerdoodle one only comes with pins in the "up" orientation and doesn't support any baseboards. But you can still plug the jumpers into the pins and wire up things on a breadboard.
Has one of the latest Xilinx SoCs. 2 GB (512M x32) LPDDR4 Memory. Wi-Fi / Bluetooth. Mini DisplayPort. 1x USB 3.0 type Micro-B, 2x USB 3.0 Type A. Audio I/O. Four user-controllable LEDs. No buttons and limited LEDs, but easy to wire up your own on a breadboard
Xilinx Zynq 7000 SoC (ARM Cortex-A9, 7-series FPGA.) 1 GB DDR3 RAM. A few switches, push buttons, and LEDs. USB and Ethernet. Audio in/out ports. HDMI source + sink with CEC. 8 Total Processor I/O, 40 Total FPGA I/O. Also a faster version for $299 (Zybo Z7-20).
Same as DE10-Standard, but not as many peripherals, buttons, LEDs, etc.
icoBoard ($100). (Buy it here.) The icoBoard plugs into a Raspberry Pi, so it's similar to having a SoC. The iCE40-HX8K chip comes with 7,680 LUTs (logic elements.) This means that after you learn the basics and create some simple circuits, you'll also have enough logic elements to run the VexRiscv soft-core CPU (the lightweight Murax SoC.) The icoBoard also supports a huge range of pluggable pmod accessories:
numato Mimas A7 ($149). An excellent development board with a Xilinx Artix 7 FPGA, so you can play with a bigger / faster FPGA and run a full RISC-V soft-core with all the options enabled, and a much higher clock speed. (The iCE40 FPGAs are a bit slow and small.)
I ordered a iCE40-HX8K Breakout Board to try out the IceStorm open source tooling. (I would have ordered an icoBoard if I had found it earlier.) I also bought a numato Mimas A7 so that I could experiment with the Artix 7 FPGA and Xilinx software (Vivado Design Suite.)
What can I do with an FPGA? / How many LUTs do I need?
VexRiscv is "A FPGA friendly 32 bit RISC-V CPU implementation." This is a RISC-V implementation written in SpinalHDL. VexRiscv has a lot of plugin and configuration options. The Murax SoC is a very light SoC that can run on an iCE40-HX8k (but probably not the 1k FPGA that only has 1,280 LUTs). The Briey SoC only runs on Xilinx or Altera FPGAs.
I am trying to set up the price ticker from the following link: https://www.reddit.com/Bitcoin/comments/4mziom/i_got_a_nice_cheap_display_for_my_raspberry_pi/ i got the LCD screen working and i am trying to run the script. but to bad it only shows me the 3 dots with a big euro. http://imgur.com/a/jyxCL Can someone tell me what i am doing wrong? Link to script: http://pastebin.com/RyYFWBUR Code to run the script: sudo apt-get install matchbox x11-xserver-utils unclutter midori vi presentation.sh #!/bin/sh unclutter & matchbox-window-manager & : xset -dpms xset s off while true; do /usbin/midori -e Fullscreen -a /home/pi/Desktop/RyYFWBUR22.html done chmod 755 presentation.sh sudo vi /etc/rc.local su -l pi -c "xinit /home/pi/presentation.sh" sudo dpkg-reconfigure x11-common set to "anybody" when i try to reconfigure to anybody i keep getting this error: update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults i tried different installs but i keep getting this error. hopefully somebody can help me out.
I was thinking about the apparent difficulty people have in obtaining Bitcoins, particularly people who are new to the currency, and also the idea of getting more people involved in Bitcoin. I had this idea for a "Bitcoin dispenser". Basically a small computer (Raspberry Pi?) with a small LED/LCD display, a coin/notes slot and a thermal printer, like a receipt printer for example. It displays the current exchange rate, and you put coins/notes in, the display shows you how much BTC you'll get for that amount. Press a button, and the printer prints a paper wallet and transfers the funds to it. I just can't see major stores accepting these any time soon, not sure if the profits would be high enough... but they could start out in hackspaces and other places? Would need to physically secure them obviously.
Building a Bitcoin tipping machine with Raspberry Pi
I thought it would be fun to build a machine that gives the "real" feedback of tipping at a bar. Like the sounds of coins hitting a jar, and a visual display of how much was tipped. So I constructed a small program in the wolfram language, which runs on the Raspberry Pi, utilizing the Chain.com API. The program plays a sound when money is tipped to the bar's address and displays how much on an LCD display. It's also fun to scan QR-codes at the table or in the bar (we tested at the Champaign-Urbana Bitcoin meetup) and it gives visitors one more reason to talk about Bitcoin. This is what it looks like when I test it: Youtube video of the Bitcoin tipping machine in action Full description of the setup here
I have decided to put together a physical point of sale system to demonstrate how Potcoin can be used in the real world. I have seen a system used in my local Pub with Bitcoin that I would like to replicate with Potcoin. I have also seen various examples on the net. I am also in contact with a company that specialises in adapting machines i.e. vending, petrol pumps to take BTC who I am sure will help me with some of the programming. Hardware wise there are 2 ways I can go about this. (A) Dedicated Laptop/PC with extra 15" screen (possibly touch screen). (B) Raspberry PI, keypad, LED display and small 4 or so inch screen. Option A is what we will most likely see in a coffee shop, dispensary etc.. it will be a lot more expensive to create and not as easy carry around for demonstrations. I have a spare netbook but its being used by colleagues at our screen printing studio for the time being. Option B will be less expensive to build and easier to transport to locations just for a demonstration on how the proper system will work. I want to start with Option B first but it will take me 3-4 weeks to get the funds together to start. I can either afford a raspberry PI or a couple of the items this weekend and then the rest in 2 weeks. If anyone has a spare Raspberry PI, USB Keypad, LED display and Mini LCD that they would like to donate I would really appreciate it. If anyone would like to donate POT, or purchase the items for me and have them posted to me to speed up the project let me know. The whole project shouldn't cost more than $100. When I have successfully created the device I plan on making a demonstration video that can be sent to vendors and releasing all the code and creating a tutorial so people can have a go at doing doing it themselves. I am also planning on getting a proper sized touch screen some time in the future to try and create a multi crypto point of sale system. Also is there any news on mobile wallets as they will be crucial to the project?
BTC price display is my Raspberry Pi project to show a Bitcoin cryptocurrency price in real time with Apache and PHP. I’m using a free Bitcoin price currency provider – CoinGate. Information how to get Bitcoin Price. Getting Bitcoin price is very easy these days. All you have to do is to research the different wallet roviders and chose your favorite. I personally use CoinGate. They have ... r/Bitcoin: A community dedicated to Bitcoin, the currency of the Internet. Bitcoin is a distributed, worldwide, decentralized digital money … Press J to jump to the feed. Press question mark to learn the rest of the keyboard shortcuts. r/Bitcoin. log in sign up. User account menu. 19. Raspberry Pi miner + LCD Display. Close. 19. Posted by. u/Beyondem. 6 years ago. Archived. Raspberry Pi ... Bitcoin Bar's enclosure consists of an interlocking box which is laser cut from 5mm MDF. The Front Panel has two slots: one for the LED Display & the other for the Acrylic Diffuser.The Back Panel has a hole for the power supplies USB cable which is plugged into the Raspberry Pi.The Bottom Panel has 4 holes to which the Raspberry Pi is mounted too. Raspberry pi 1, single core, will require an Ethernet cable; Raspberry pi 2 , dual core, will require an Ethernet cable; Raspberry pi 3 or 4, a bit a shame to use this amount of power for that task, but has built in WIFI; A 3.5” LCD screen from Amazon. Raspberry Pi LCD Display Module 3.5inch 320X480 TFT; Raspberry Pi LCD Display Module 3 ... bitcoin ethereum raspberrypi raspbianHow to monitor your favorite cryptocurrencies on a 3.5 inches LCD and any Raspberry PI! The python script is easily extensible and let you add any cryptocurrency pair. Shopping list You need obviously a raspberry pi, ideally with WIFI build in if you don’t like cables Raspberry pi 1, single core, will […]
My take on making a Bitcoin/Litecoin ticker using a Raspberry Pi and a $30 LCD screen from eBay. Check out the completely how-to along with all the files you... In this video, we'll walk through how to install a TFT LCD screen on on a Raspberry Pi for small form factor or portable projects. This screen will form part... I found a cool touchscreen enclosure for Raspberry Pi 7" touchscreen and a Raspberry Pi, so I did a video showing it off and how to put it all together. Here... Getting started with 16x2 LCD Display for Raspberry Pi - Duration: 2:18. Leon Anavi 22,529 ... How to make a Raspberry Pi Bitcoin Mining Rig - Duration: 9:43. Tinkernut Labs Recommended for you. 9 ... This video is about RaspberryPI LCD 16x2 Temperature Monitor #1. RASPBERRY PI Find I2C address of your device https://youtu.be/3WfOP_0kU1g #2. HOWTO Raspberr...