MONERO · RANDOMX

Mining Monero on ARM

1 · Should you mine this on a CPU?

Yes, with modest expectations. Monero is the classic CPU coin — RandomX was built to resist ASICs, so CPUs are the intended hardware. ARM phones and SBCs mine it fine, but ~700 H/s is a tiny slice of the network: this is hobby scale, not income. It's also the hottest-running algorithm this miner has — read the RAM and heat notes below.

2 · Get a wallet

Use the official Monero GUI/CLI wallet (getmonero.org) or Feather (featherwallet.org). Avoid pointing mining payouts at a hot exchange wallet if you can — exchanges sometimes flag or refuse many small mining deposits, and it's not your key.

3 · Pick a pool

Worked example: stratum+tcp://pool.supportxmr.com:3333 — or stratum+ssl://pool.supportxmr.com:443 for TLS. Nanopool is a solid alternative.

Monero pools use your wallet address as the login. Many support a fixed-difficulty suffix: YOUR_WALLET+50000 asks for difficulty 50000, which suits slow workers — shares come at a steadier, saner rate for a phone.

4 · Configure the miner

CLI

command

$ ./primo -a randomx -o stratum+tcp://pool.supportxmr.com:3333 \
      -u YOUR_XMR_ADDRESS -p worker1

config.json

config.json — run with ./primo -c config.json

{
  "algo": "randomx",
  "url":  "stratum+ssl://pool.supportxmr.com:443",
  "user": "YOUR_XMR_ADDRESS+50000",
  "pass": "worker1"
}

APK

Configuration → Algorithm → randomx. Threads defaults to your core count; the app picks fast or light RandomX mode automatically based on free RAM.
Primary pool: URL and wallet as above, password = your worker name.
SAVE, then START MINING. The dashboard reads 0.00 for the first ~15 seconds — that's the dataset build, not a problem.

APK configuration with randomx algorithm and an XMR pool — The randomx profile in the app.

APK dashboard mining Monero RandomX at 760 H/s — Mining Monero at 760 H/s.

5 · What to expect

Hardware	Hashrate (fast mode)
A76-class big core (1 thread)	~160 H/s
8-core phone or RK3588 board	~700 H/s

Light mode (low-RAM fallback) is roughly 5× slower.

6 · RandomX-specific notes

RAM: fast mode needs ~2.5 GiB free. On low-RAM devices the miner falls back to light mode automatically (~5× slower); the APK picks the mode for you.
Heat: RandomX runs hotter than any other algorithm here. Watch the temperature tile; a small fan helps a lot.
Huge pages (Linux): ~11% faster with sysctl vm.nr_hugepages=1200 before starting.
Startup: the ~2 GiB dataset build takes ~15 s; the first hashrate line prints after that.
Dev fee on RandomX: 1% (60 s per 100 min), logged in the console.

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