Arduino joystick KSP game controller

This goes along with a video on YouTube.

wiring diagram

Code for Arduino’s plotter

void setup() {
// initialize serial communication at 9600 bits per second:
pinMode(A3, INPUT_PULLUP);
// the loop routine runs over and over again forever:
void loop() {
// read the input on analog pin 0:
int p = analogRead(A0);
int t = analogRead(A1);
int r = analogRead(A2);
int b = analogRead(A3);

String st = String(p) + " " + String(t) + " " + String(r) + " " + String(b);
delay (10);

code for use a game controller keyboard mode

include "Keyboard.h"
void setup() {
pinMode(A3, INPUT_PULLUP);
void loop() {
int p = analogRead(A0);
int t = analogRead(A1);
int r = analogRead(A2);

if (digitalRead(A3) == LOW) {
//Send an ASCII 'h',

if (p < 300) {
//Send an ASCII 'j',
if (p >900) {
//Send an ASCII 'l',

if (t < 300) {
//Send an ASCII 'i',
if (t >900) {
//Send an ASCII 'k',

if (r < 300) {
//Send an ASCII 'q',
if (r >900) {
//Send an ASCII 'e',


Testing 10Gb switches using iPerf

So I have a few 10Gb Switches I need to test out using iPerf. I know iPerf can handle it as they have 10Gb public servers available on the internet, but can my machines handle it and can I get cheap NICs to do this also?

Machines I want to use are Dell 7010 with Core i3 2120 3.3GHz 2GB DDR3 – was super cheap from eBay. They are the MT (tower) so have 3 PCI slots that are full height, one x16, one (x4 electrical) x16 and one x1. The chipset is Intel® Q77 Express Chipset so v2 only, with only 8 lanes, so I assume the x16 slot is from the processor (also v2 16 lanes) and the x4/x1 from the chipset. (Note the DT has the same PCIe configuration but half height, and the SFF has only the x16 and x16 (x4 electrical).)

PCIe versionYearTransfersx1 speedx4 speedx8 speedx16 speed

So the x4 slot can do 10Gbit speeds, but the x16 would be better as it can do 64Gb/s – and also closer to the processor electrically so less latent. There’s quite a few dual 10Gb card cheap on eBay so maybe i’ll start by looking into them….

Shreddarhhhhhhhh (shredder)

I’ve been collecting plastic to melt down for a while now – been using a blender to break it up – but that’s a rubbish idea and has been failing. Time for a shredder. Got me a Fellowes 99Ci 😀



here’s some other YouTube links 

Got the PCI hub/switch/expander installed finally.

Wahooo – brought a 40£ workstation – whacked in a Hard drive and got it up and working with a GTX 1050 in the machine and also a GTX 750 on the riser/hub board.

PCI switch expander on a Dell 7010

PCI switch expander on a Dell 7010

Had to botch together a longer power cable….

power cable made longer

power cable made longer

And now sitting next to my blade server.

PCI switch expander on a Dell 7010

PCI switch expander on a Dell 7010

power usage

power usage

Power usage on the external card is less than 50w so happy with my power cable bodge.

lokid options

Usage: ./lokid [options|settings] [daemon_command…]

–help Produce help message
–version Output version information
–os-version OS for which this executable was
–config-file arg (=/home/mine/.loki/loki.conf, /home/mine/.loki/testnet/loki.conf if ‘testnet’, /home/mine/.loki/stagenet/loki.conf if ‘stagenet’)
Specify configuration file
–detach Run as daemon
–pidfile arg File path to write the daemon’s PID to
(optional, requires –detach)
–non-interactive Run non-interactive

–log-file arg (=/home/mine/.loki/loki.log, /home/mine/.loki/testnet/loki.log if ‘testnet’, /home/mine/.loki/stagenet/loki.log if ‘stagenet’)
Specify log file
–log-level arg
–max-log-file-size arg (=104850000) Specify maximum log file size [B]
–max-log-files arg (=50) Specify maximum number of rotated log
files to be saved (no limit by setting
to 0)
–max-concurrency arg (=0) Max number of threads to use for a
parallel job
–zmq-rpc-bind-ip arg (= IP for ZMQ RPC server to listen on
–zmq-rpc-bind-port arg (=22024, 38158 if ‘testnet’, 38155 if ‘stagenet’)
Port for ZMQ RPC server to listen on
–data-dir arg (=/home/mine/.loki, /home/mine/.loki/testnet if ‘testnet’, /home/mine/.loki/stagenet if ‘stagenet’)
Specify data directory
–test-drop-download For net tests: in download, discard ALL
blocks instead checking/saving them
(very fast)
–test-drop-download-height arg (=0) Like test-drop-download but discards
only after around certain height
–testnet Run on testnet. The wallet must be
launched with –testnet flag.
–stagenet Run on stagenet. The wallet must be
launched with –stagenet flag.
–regtest Run in a regression testing mode.
–fixed-difficulty arg (=0) Fixed difficulty used for testing.
–enforce-dns-checkpointing checkpoints from DNS server will be
–prep-blocks-threads arg (=4) Max number of threads to use when
preparing block hashes in groups.
–fast-block-sync arg (=1) Sync up most of the way by using
embedded, known block hashes.
–show-time-stats arg (=0) Show time-stats when processing
blocks/txs and disk synchronization.
–block-sync-size arg (=0) How many blocks to sync at once during
chain synchronization (0 = adaptive).
–check-updates arg (=notify) Check for new versions of loki:
–fluffy-blocks Relay blocks as fluffy blocks
(obsolete, now default)
–no-fluffy-blocks Relay blocks as normal blocks
–test-dbg-lock-sleep arg (=0) Sleep time in ms, defaults to 0 (off),
used to debug before/after locking
mutex. Values 100 to 1000 are good for
–offline Do not listen for peers, nor connect to
–disable-dns-checkpoints Do not retrieve checkpoints from DNS
–max-txpool-weight arg (=648000000) Set maximum txpool weight in bytes.
–service-node Run as a service node
–block-notify arg Run a program for each new block, ‘%s’
will be replaced by the block hash
–extra-messages-file arg Specify file for extra messages to
include into coinbase transactions
–start-mining arg Specify wallet address to mining for
–mining-threads arg Specify mining threads count
–bg-mining-enable enable/disable background mining
–bg-mining-ignore-battery if true, assumes plugged in when unable
to query system power status
–bg-mining-min-idle-interval arg Specify min lookback interval in
seconds for determining idle state
–bg-mining-idle-threshold arg Specify minimum avg idle percentage
over lookback interval
–bg-mining-miner-target arg Specify maximum percentage cpu use by
–db-type arg (=lmdb) Specify database type, available: lmdb
–db-sync-mode arg (=fast:async:250000000bytes)
Specify sync option, using format
–db-salvage Try to salvage a blockchain database if
it seems corrupted
–p2p-bind-ip arg (= Interface for p2p network protocol
–p2p-bind-ipv6-address arg (=::) Interface for p2p network protocol
–p2p-bind-port arg (=22022, 38156 if ‘testnet’, 38153 if ‘stagenet’)
Port for p2p network protocol (IPv4)
–p2p-bind-port-ipv6 arg (=22022, 38156 if ‘testnet’, 38153 if ‘stagenet’)
Port for p2p network protocol (IPv6)
–p2p-use-ipv6 Enable IPv6 for p2p
–p2p-external-port arg (=0) External port for p2p network protocol
(if port forwarding used with NAT)
–allow-local-ip Allow local ip add to peer list, mostly
in debug purposes
–add-peer arg Manually add peer to local peerlist
–add-priority-node arg Specify list of peers to connect to and
attempt to keep the connection open
–add-exclusive-node arg Specify list of peers to connect to
only. If this option is given the
options add-priority-node and seed-node
are ignored
–seed-node arg Connect to a node to retrieve peer
addresses, and disconnect
–hide-my-port Do not announce yourself as peerlist
–no-igd Disable UPnP port mapping
–out-peers arg (=-1) set max number of out peers
–in-peers arg (=-1) set max number of in peers
–tos-flag arg (=-1) set TOS flag
–limit-rate-up arg (=-1) set limit-rate-up [kB/s]
–limit-rate-down arg (=-1) set limit-rate-down [kB/s]
–limit-rate arg (=-1) set limit-rate [kB/s]
–save-graph Save data for dr monero
–rpc-bind-port arg (=22023, 38157 if ‘testnet’, 38154 if ‘stagenet’)
Port for RPC server
–rpc-restricted-bind-port arg Port for restricted RPC server
–restricted-rpc Restrict RPC to view only commands and
do not return privacy sensitive data in
RPC calls
–bootstrap-daemon-address arg URL of a ‘bootstrap’ remote daemon that
the connected wallets can use while
this daemon is still not fully synced
–bootstrap-daemon-login arg Specify username:password for the
bootstrap daemon login
–rpc-bind-ip arg (= Specify IPv4 address to bind RPC server
–rpc-bind-ipv6-address arg (=::1) Specify IPv6 address to bind RPC server
–rpc-use-ipv6 Allow IPv6 for RPC
–rpc-login arg Specify username[:password] required
for RPC server
–confirm-external-bind Confirm rpc-bind-ip value is NOT a
loopback (local) IP
–rpc-access-control-origins arg Specify a comma separated list of
origins to allow cross origin resource