I would love to do a lil-intro on what a bitcoin node is before I dive into the main context of the topic incase a newbie is reading.
What are bitcoin nodes and what are they important to the network Bitcoin nodes are computer or devices that run a bitcoin software and store a copy of the entire bitcoin blockchain, which is the decentralized digital ledger that records all bitcoin transactions. Nodes are essential to the bitcoin network cause they:
Verify Transaction: nodes ensure that the same bitcoin is not spent twice theyby checking the validity of a transaction, if you have transferred a bitcoin to someone before you could see that the transaction is being processed or some apps would tell you validating transaction, its the node that is responsible for oder in the bitcoin network.
Nodes also ensure transparency by storing a copy of the entire blockchain which helps improve accuracy and integrity of the network.
Nodes are a key factor that helps synchronise wallets with network allowing bitcoin to sent and received between one another.
In conclusion nodes helps maintain decentralization, ensure security, facilitate network scalability etc., bitcoin nodes are literally the backbone of the entire network and they are the main reason the network remains functional and smooth.
Introducing the idea of repurposing smartphones as a bitcoin nodeIn our current time a lot of people are using the bitcoin network regularly which calls for a need for more nodes, smartphones get outdated easily and most phones don't last more than 2 years as they life span and would get dumped or thrown away, instead of letting old smartphone collect the dust or trashing them away you can repurpose them into a bitcoin node and let them leave the rest of their days useful to the bitcoin network. And moreover there are very easy to come by and the set isnt complex although it might need to few extra components that you can find around.
Old smartphones have the necessary hardware and storage capacity to run a Bitcoin node, making them an ideal candidate for repurposing. By installing Bitcoin node software on these devices, we can create a decentralized network of nodes that verify and relay transactions, ensuring the integrity and security of the Bitcoin blockchain.
How to setup and run a bitcoin node on a smartphone.Requirements
-An old smartphone android or ios( although smasung seems to be the best)
- A microsd card at least 128gb for a pruned node and 1terabit external harddrive to run a full node.
- an otg adapter for android or a lightning to USB camera adapter for ios
- a steady power source( power Bank)
- Internet connection WiFi
Software
-termux and then install bitcoin core(abc)
Or mynode for ios
Setup
1. Prepare your phone:
- Make sure your phone is fully charged and has enough storage space.
- Enable Developer Options and USB debugging (for Android).
- Trust the computer (if prompted) when connecting your phone to a computer.
- Insert the microSD card into your phone.
- Format the microSD card as internal storage (for Android) or use the "Store Bitcoin blockchain on external storage" option (for iOS).
- Connect your phone to a Wi-Fi network or use a USB Ethernet adapter for a wired connection.
- Connect your phone to a power source to keep it running continuously.
2. Install Bitcoin Core (Android) or MyNode (iOS):
- Download and install Bitcoin Core from the tremux or andronix from playstore
- Termux is a Linux terminal emulator for Android. It will provide the emulation environment for Ubuntu Linux
- After installing Termux on the phone, you must install Ubuntu on the emulator. All you have to do is copy and paste this code on Termux
pkg upgrade && termux-setup-storage && curl
https://raw.githubusercontent.com/AndronixApp/AndronixOrigin/master/repo-fix.sh > repo.sh && chmod +x repo.sh && bash repo.sh && pkg update -y && pkg install wget curl proot tar -y && wget
https://bitbrasil.com.br/sh/ubuntu20.sh -O ubuntu20.sh && chmod +x ubuntu20.sh && bash ubuntu20.sh
- In the same way that Ubuntu was installed on Termux, install Bitcoin Core on Ubuntu by copying and pasting the following command and executing it on Termux.
apt-get update && apt-get upgrade -y && apt install curl -y && curl
https://bitbrasil.com.br/sh/install-full-node.sh | sh
This code will install the Bitcoin software on the mobile phone and store the blockchain data on the external drive.
3. *Configure the node:
- Set up the node as a "Full Node" or "Pruned Node" (depending on your storage capacity).
- Configure the node to connect to the Bitcoin network.
- Regularly update the node software and restart the node if needed.
Credits
https://portaldobitcoin.uol.com.br/brazilian-teaches-how-to-run-a-full-bitcoin-node-on-an-android-smartphone-tutorial/amp/https://bitcointalk.org/index.php?topic=5425137.0