Update: 20220829 – Microscope G1200
Tools:
thingy i made last year
Bought some boxes for chips
My Electronics Lab
thingy i made last year
Tag Archives: hardware
thingy i made last year
Wannahaves
Fun .. but do i need it?
HackRF One
HackRF One from Great Scott Gadgets is a Software Defined Radio peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz. Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation.
- 1 MHz to 6 GHz operating frequency
- half-duplex transceiver
- up to 20 million samples per second
- 8-bit quadrature samples (8-bit I and 8-bit Q)
- compatible with GNU Radio, SDR#, and more
- software-configurable RX and TX gain and baseband filter
- software-controlled antenna port power (50 mA at 3.3 V)
- SMA female antenna connector
- SMA female clock input and output for synchronization
- convenient buttons for programming
- internal pin headers for expansion
- Hi-Speed USB 2.0
- USB-powered
- open source hardware
I’ve got dvb alternative below now. Hackrf cannot be bought anymore
Gemini PDA
ALTAIR 8800 EMULATOR KIT
The Altair 8800 is a microcomputer designed in 1974 and based on the intel 8080 CPU. Using only switches to program and leds for output.
Even my DIY build computer has a hex keyboard input and 7segments display.
Omnicharge 20+ Usb C Wireless Power Bank 20,000mAh Power Delivery 3.0 + Quick Charge 3.0
You can use this as a mobile soldering station using a TS100 soldering iron.
Rigol Oscilloscope DS1054
SDCard reader for C64 and other commodore machines
Got this one now, superb. And a Meatloaf DIY
Tv Stick Dab Fm Dvb-t RTL2832 R820T Sdr RTL-SDR Dongle Stick Digitale Tv Tuner Ontvanger TVSDVBS816
Update : got this one, review later on.
Clear case for amiga and tank mouse
OldSkool Computer Cartridges/expansions/add-ons
(Todo : add photos/designs )
Amiga:
| Action Replay II | Owned since … 80s 90s? Modded this one, as part of my modular amiga system where i wanted to remake every part onto 10×15 euro prints. So i could swap things out for other boards. |
| Memory expansion | 512k .. missing in action Go a new one in … ? |
| Boot selector | Swaps df0 and df1 DIY version was a wirewrap ic socket with a cross switch, now i have a Gotek buffered switching module with can be actvated with a keystroke. (Gotek post) |
| Keyboard mod | Hidden key (in the space of the stands, which triggered a extra key stroke) |
| Kickstart selector | A print you can insert in the ROM socket of your amiga. Had only 1.2 and 1.3. Now there are many .. like diagnostic roms. I made a altered 1.2 version .. which was unusable .. i f*cked it up |
| SID mod | Added a sid parallel on the 8020 CIA chip |
| Gotek driver emulator | I made a arduino version to read disks. (Other post) But this is a disk image drive emulator. See Gotek post |
| Boot sector warn | Piezo beeper which warned me when a boot sector was being written (virus alert) |
| Sound filter fix | Amiga audio filter enhancer, using capacitors and resistors |
C64:
| Final Cartridge III | |
| Led mod | Memory activation leds |
| KCS Power Cartridge | Sepp’s old cartridge? |
| Rom selector | DIY rom selector |
| Data Manager 2 | Can’t find anything on this one on other sites !?!?! https://www.henriaanstoot.nl/2022/07/17/mystery-cartridge-c64/ |
Atari:
Vic-20:
| Reset mod | DIY reset mod |
| ROM selector | DIY ROM selector |
| Many cartridges | Sold in 2022, kept only some useful once’s |
PC:
| PC speaker mod | Speaker to audio jack |
| Seek time monitor | When a seek took too long, LEDs would light up, time to defrag! |
| Covox mod | A pre sound card parallel to audio resistor bridge. Only a few demo’s and games supported this mod. |
| VGA to scart | Display hack |
Monitor:
| Monitor mod | DIY horizontal flip using relays |
| Color mod | Greyscale / RGB switcher |
Generic:
| Joystick recorder | recorded movements when playing a game, so it could replay parts. |
MQTT Keyboard
A fancy keyboard….. At last a clickety keyboard. A Razer Blackwidow V3 mechanical keyboard. I’m not a gamer, but i like the clickety sounds. RGB leds are always nice to play with.
One of the nice things about razer is the Linux support!
Some nice links:
https://github.com/openrazer/openrazer
Even several python scripts can be found, but no MQTT.
So made a fast ‘n simple hack to control my keyboard with mqtt/nodered.
When someone is at the frontdoor, my keyboard changes from white to red.
Below a node-red example
My python code:
import paho.mqtt.client as mqttClient
import time
import os
import subprocess
import json
def on_connect(client, userdata, flags, rc):
if rc == 0:
print("Connected to broker")
global Connected
Connected =True
else:
print("Connection failed")
def on_message(client, userdata, message):
subprocess.Popen(["razer-cli", "-c", message.payload])
Connected = False
broker_address = "your.mqtt.brokerip.here"
port = 1883
#user = "user"
#password = "password"
client = mqttClient.Client("mqttrazer")
#client.username_pw_set(user, password=password)
client.on_connect = on_connect
client.on_message = on_message
client.connect(broker_address, port=port)
client.loop_start()
while Connected != True:
time.sleep(0.1)
client.subscribe('razer/in')
try:
while True:
time.sleep(1)
except KeyboardInterrupt:
print ("exiting")
client.disconnect()
client.loop_stop()
Checking SFP connections with phone
Testing my 10gbps fiber
If your mobile doesn’t have a filter, you should be able to see fiber connections using camera.
Hex Dimmer
Control a dimmer using a hex wireless box.
Parts
- Wemos Mini
- MPU6050 – Gyroscope Module
- 10k Resistor
- TP4056 – Battery Charger Module
- Mini Battery
- Wireless Charger
Put the box flat on the table to switch off.
When you put it on one side, it will controll your lights brightness.
20,40,60,80 and 100%, just by rotating and putting it down on its sides.
Schematics (without the wireless charging part)
Node-Red Controll part (source below)
Nice to have’s :
Arduino-sleep mode, wakeup with a movement sensor.
Arduino Code
#include <Wire.h>
//#include <SPI.h>
#include <PubSubClient.h>
//#include <string.h>
//#include <stdio.h>
#include <ESP8266WiFi.h>
// Wifi settings
const char* ssid = "xxxxxx";
const char* password = "xxxxxxxxxx";
const char* mqtt_server = "10.1.0.17";
// I2C address of the MPU-6050 - 0x68 or 0x69 if AD0 is pulled HIGH
const int MPU = 0x68;
int16_t AcX, AcY, AcZ, GyX, GyY, GyZ;
float gForceX, gForceY, gForceZ, rotX, rotY, rotZ;
// Wifi MAC address
byte mac[]= { 0xDE, 0xED, 0xBA, 0xFE, 0xFE, 0xED };
WiFiClient espClient;
IPAddress ip;
PubSubClient mqttClient(espClient);
// IP address of your MQTT server
const char* server = "10.1.0.17";
//const char* outTopic = "test/";
//const char* server = "iot.eclipse.org";
void dataReceiver(){
Wire.beginTransmission(MPU);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU,14,true); // request a total of 14 registers
AcX = Wire.read()<<8|Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)
AcY = Wire.read()<<8|Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)
AcZ = Wire.read()<<8|Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)
GyX = Wire.read()<<8|Wire.read(); // 0x43 (GYRO_XOUT_H) & 0x44 (GYRO_XOUT_L)
GyY = Wire.read()<<8|Wire.read(); // 0x45 (GYRO_YOUT_H) & 0x46 (GYRO_YOUT_L)
GyZ = Wire.read()<<8|Wire.read(); // 0x47 (GYRO_ZOUT_H) & 0x48 (GYRO_ZOUT_L)
processData();
}
void processData(){
gForceX = AcX / 16384.0;
gForceY = AcY / 16384.0;
gForceZ = AcZ / 16384.0;
rotX = GyX / 131.0;
rotY = GyY / 131.0;
rotZ = GyZ / 131.0;
}
void debugFunction(int16_t AcX, int16_t AcY, int16_t AcZ, int16_t GyX, int16_t GyY, int16_t GyZ){
// Print the MPU values to the serial monitor
Serial.print("Accelerometer: ");
Serial.print("X="); Serial.print(gForceX);
Serial.print("|Y="); Serial.print(gForceY);
Serial.print("|Z="); Serial.println(gForceZ);
Serial.print("Gyroscope:");
Serial.print("X="); Serial.print(rotX);
Serial.print("|Y="); Serial.print(rotY);
Serial.print("|Z="); Serial.println(rotZ);
}
void reconnect() {
// Loop until we're reconnected
while (!mqttClient.connected()) {
Serial.print("Attempting MQTT connection...");
// Attempt to connect
if (mqttClient.connect("arduinoClient")){
Serial.println("connected");
}
else {
Serial.print("failed, rc=");
Serial.print(mqttClient.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(1000);
}
}
}
void setup(){
Serial.begin(9600);
setup_wifi();
Wire.begin(0,2);
Wire.beginTransmission(MPU);
Wire.write(0x6B); // PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
mqttClient.setServer(server, 1883);
// Ethernet.begin(mac);
// ip = Ethernet.localIP();
Serial.println(ip);
Serial.println(server);
//delay(1500);
}
char* init(float val){
char buff[100];
for (int i = 0; i < 100; i++) {
dtostrf(val, 4, 2, buff); //4 is mininum width, 6 is precision
}
return buff;
}
void setup_wifi() {
delay(10);
// We start by connecting to a WiFi network
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void dataAcc(){
char mpu6050X[100]= "";
strcat(mpu6050X,init(gForceX));
char mpu6050Y[100]= "";
strcat(mpu6050Y,init(gForceY));
char mpu6050Z[100]= "";
strcat(mpu6050Z,init(gForceZ));
// accelerometer - "topic, mpu6050"
mqttClient.publish("AcX/", mpu6050X);
mqttClient.publish("AcY/", mpu6050Y);
mqttClient.publish("AcZ/", mpu6050Z);
// mqttClient.publish(outTopic, "text to send via mqtt");
}
void dataGy(){
char mpu6050X[100]= "";
strcat(mpu6050X,init(rotX));
char mpu6050Y[100]= "";
strcat(mpu6050Y,init(rotY));
char mpu6050Z[100]= "";
strcat(mpu6050Z,init(rotZ));
// gyroscope - "topic, mpu6050"
mqttClient.publish("GyX/", mpu6050X);
mqttClient.publish("GyY/", mpu6050Y);
mqttClient.publish("GyZ/", mpu6050Z);
// mqttClient.publish(outTopic, "text to send via mqtt");
}
void loop(){
dataReceiver();
debugFunction(AcX,AcY,AcZ,GyX,GyY,GyZ);
if (!mqttClient.connected()) {
reconnect();
}
mqttClient.loop();
dataAcc();
dataGy();
delay(2000);
}Nodered Flow
[
{
"id": "7550958a.b29dec",
"type": "mqtt in",
"z": "a0126a6a.9c70b8",
"name": "",
"topic": "hex/x",
"qos": "2",
"broker": "8c74c5f6.9a7a48",
"x": 270,
"y": 100,
"wires": [
[
"d251dd79.5700d"
]
]
},
{
"id": "e84b0a1.18096f8",
"type": "mqtt in",
"z": "a0126a6a.9c70b8",
"name": "",
"topic": "hex/y",
"qos": "2",
"broker": "8c74c5f6.9a7a48",
"x": 270,
"y": 180,
"wires": [
[
"9c27bc8f.b62dd"
]
]
},
{
"id": "6a1a0d8d.b3e754",
"type": "mqtt in",
"z": "a0126a6a.9c70b8",
"name": "",
"topic": "hex/z",
"qos": "2",
"broker": "8c74c5f6.9a7a48",
"x": 270,
"y": 260,
"wires": [
[]
]
},
{
"id": "2d2a911a.6af3fe",
"type": "ui_gauge",
"z": "a0126a6a.9c70b8",
"name": "",
"group": "d43a9f25.6c874",
"order": 23,
"width": 0,
"height": 0,
"gtype": "gage",
"title": "gauge",
"label": "units",
"format": "{{value}}",
"min": "0",
"max": "100",
"colors": [
"#00b500",
"#e6e600",
"#ca3838"
],
"seg1": "",
"seg2": "",
"x": 1010,
"y": 120,
"wires": []
},
{
"id": "d251dd79.5700d",
"type": "function",
"z": "a0126a6a.9c70b8",
"name": "Get level from box",
"func": "var my=msg.payload;\nmsg.payload = {};\nif (my == 0.85){\n msg.payload=20;\n return msg;\n}\nelse if (my == 0.86){\n msg.payload=20;\n return msg;\n}\nelse if (my == 0.87){\n msg.payload=20;\n return msg;\n}\n\nelse if (my == 0.03){\n msg.payload=40;\n return msg;\n}\nelse if (my == 0.02){\n msg.payload=40;\n return msg;\n}\n\nelse if (my == 3.17){\n msg.payload=60;\n return msg;\n}\nelse if (my == 3.18){\n msg.payload=60;\n return msg;\n}\n\nelse if (my == 0.04){\n msg.payload=80;\n return msg;\n}\nelse if (my == 0.05){\n msg.payload=80;\n return msg;\n}\n\nelse if (my == 3.95){\n msg.payload=100;\n return msg;\n}\nelse if (my == 3.96){\n msg.payload=100;\n return msg;\n}\nelse {\n return msg;\n \n}\n",
"outputs": 1,
"noerr": 0,
"x": 510,
"y": 120,
"wires": [
[
"ecd746cc.fce348",
"8721e902.45d8b8",
"39c8f1ac.86affe"
]
]
},
{
"id": "39c8f1ac.86affe",
"type": "function",
"z": "a0126a6a.9c70b8",
"name": "Set Living spots level (idx 5)",
"func": "var level = Number(msg.payload);\nmsg.payload = {};\nmsg.payload.idx = 5;\nmsg.payload.switchcmd = (\"Set Level\");\nmsg.payload.command = \"switchlight\";\nmsg.payload.level = level;\nreturn msg; ",
"outputs": 1,
"noerr": 0,
"x": 820,
"y": 260,
"wires": [
[
"bc0d6507.1d7748"
]
]
},
{
"id": "bc0d6507.1d7748",
"type": "mqtt out",
"z": "a0126a6a.9c70b8",
"name": "",
"topic": "domoticz/in",
"qos": "",
"retain": "",
"broker": "8c74c5f6.9a7a48",
"x": 1080,
"y": 260,
"wires": []
},
{
"id": "9c27bc8f.b62dd",
"type": "function",
"z": "a0126a6a.9c70b8",
"name": "Flat or standing up",
"func": "var mya=msg.payload;\nmsg.payload = {};\nif (mya < -3.80){\n flow.set(\"levely\",1);\n msg.payload = \"plat\";\n }\nelse {\n flow.set(\"levely\",2);\n msg.payload = \"rechtop\";\n}\nreturn msg;",
"outputs": 1,
"noerr": 0,
"x": 450,
"y": 200,
"wires": [
[
"ecd746cc.fce348"
]
]
},
{
"id": "ecd746cc.fce348",
"type": "debug",
"z": "a0126a6a.9c70b8",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"x": 640,
"y": 340,
"wires": []
},
{
"id": "8721e902.45d8b8",
"type": "function",
"z": "a0126a6a.9c70b8",
"name": "Gate for level ",
"func": "\nvar x = msg.payload;\ny = flow.get(msg.payload);\nvar y = flow.get('levely') || 0;\n\nif (y == 1){\n msg.payload = {};\n msg.payload = 0;\n} else {\n msg.payload = x;\n}\n\nreturn msg;",
"outputs": 1,
"noerr": 0,
"x": 810,
"y": 120,
"wires": [
[
"2d2a911a.6af3fe",
"da72437e.88376"
]
]
},
{
"id": "da72437e.88376",
"type": "debug",
"z": "a0126a6a.9c70b8",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "false",
"x": 890,
"y": 200,
"wires": []
},
{
"id": "8c74c5f6.9a7a48",
"type": "mqtt-broker",
"z": "",
"name": "10.1.0.17",
"broker": "10.1.0.17",
"port": "1883",
"clientid": "",
"usetls": false,
"compatmode": true,
"keepalive": "15",
"cleansession": true,
"birthTopic": "",
"birthQos": "0",
"birthPayload": "",
"closeTopic": "",
"closePayload": "",
"willTopic": "",
"willQos": "0",
"willPayload": ""
},
{
"id": "d43a9f25.6c874",
"type": "ui_group",
"z": "",
"name": "Control",
"tab": "739541e2.18396",
"order": 1,
"disp": true,
"width": "6",
"collapse": false
},
{
"id": "739541e2.18396",
"type": "ui_tab",
"z": "",
"name": "7inch",
"icon": "dashboard",
"order": 1,
"disabled": false,
"hidden": false
}
]Broken or slow laptop? Screen still works?
Remove the screen and check its connector.
Maybe you can buy a controller board in china for cheap.
I took apart a EEEpc with a nice little screen.
I looked for HSD100IFW1-A00 1024-600 controller.
And ordered a
Driver Board for 10.1 “HSD100IFW1-A00/HSD100IFW1-A04 / HSD100IFW1 Lcd Composite + Tv(RF) + Usb + Vga + Hdmi-Compatibel 1024 × 600 Controller Board
It was only around 20 euro’s.
Safe fireworks this year
This year i used safe fireworks.
A ledstrip ( about 600 leds ) controlled by an arduino.
Only problem is .. there is no sound, but i managed to fix that 🙂
Mikrotik
Switches and access-points
Today i got my RB4011 ! Wooot!
Total tally
- MikroTik CRS305-1G-4S+IN –
LabAttic - MikroTik RB2011UiAS-RM – Office
- MikroTik hAP AC2 – Studio
- MikroTik CRS109-8G-1S-2HnD-IN – Attic
- MikroTik RB4011iGS+5HacQ2HnD-IN – Livingroom
- MikroTik RB2011UiAS – Lab
- (2022-04-02) crs125-24g-1s-in (2022-04-02)
- NEW (2026-01-15) C53UiG+5HPaxD2HPaxD MikroTik hAP ax3
To replace .. 4 SLM2008 and a TPLink switch 🙂
I’ll be posting something about connecting an arduino to the serial console using a tcp server later.
Mikrotiks are all you can eat .. And there is a lot of functionality. One of the main features (besides being switches and routers)
- Openvpn server
- DIY display connect
- Proxy
- Today Vincent mentioned Mqtt plugin (2022-apr-6)
- https://help.mikrotik.com/docs/display/ROS/Packet+Sniffer sounds interesting also
Installing extra packages
- Download correct package zip from ( https://mikrotik.com/download )
- Extract and use file upload
- Reboot your mikrotik
Action LSC Alarm/Siren
Update 20221208 – removed internals
I’ve modded several LSC devices, most of them i could flash with esp-easy or tasmota.
Why mod it? Because it uses the cloud .. i’d like to keep control myself.
Just connect/solder a USB to TTL Converter UART Module like below.
(See other posts)
But this alarm was different, i ended up removing the chip and replace it with a ESP12.
So now i had to figure out which GPIO pins and how to control them.
#1/bin/bash
# Flashed ESP Easy on this one
# When i did this, 2019, you needed version 2.1-beta1
# GPIO 4 controls LED
sleep 10
curl http://10.1.1.251/control?cmd=GPIO,4,1
sleep 1
curl http://10.1.1.251/control?cmd=GPIO,4,0
sleep 1
curl http://10.1.1.251/control?cmd=GPIO,4,1
sleep 2
curl http://10.1.1.251/control?cmd=GPIO,4,0
sleep 5
# Sending rtttl ringtone
curl "http://10.1.1.251/control?cmd=rtttl,5:d=4,o=5,b=112:8a,8a,a,8a,8a,a,8a,8c6,8f.,16g,2a,8a-,8a-,8a-.,16a-,8a-,8a,8a.,16a,8a,8g,8g,8a,g,c6"
alarm sound
curl "http://10.1.1.251/control?cmd=rtttl,5:d=4,o=5,b=160:2g,2c6,2g,2c6,2g,2c6,2g,2c6"
pager
curl "http://10.1.1.251/control?cmd=rtttl,5:d=4,o=5,b=160:8d6,16p,2d6,16p,8d6,16p,2d6,16p,8d6,16p,2d6"
Update 20221208 – removed internals
Removed my old hack and replaced it with a Wemos D1.
Added a LED
Next to do .. add a amplifier using a LM356/358
