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Julian Spina

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By Julian Spina
6 June 2022 0

Easy Programming ESP-12E using ESP-8266

How to program ESP-12E, simple board When choosing an MCU with WiFi support a good choice is a module from…

By Julian Spina
25 August 2022 0

Control Water Pump using ESP8266 ESP12E (DRAFT)

Goal: Safely control water pump from remote Requirements: Obtain a clean/stable output voltage; Address potential problems (relay contact soldering); Use…

By Julian Spina
22 March 2022 2

ATTiny/Arduino UNO AC current measurements with ACS712

Read AC current and transmit reading via 433MHz This is the AC version of the program I published last year…

By Julian Spina
29 December 2021 1

ACS712 Module problems – 30A version

Double check rating of power connector on ACS712-30A modules. May happen that connector is only rated for 10A, in which case it makes sense to remove the connector.

By Julian Spina
21 March 2021 12

Arduino DC current measurement problems

Reading current with ACS712 and a ±0.1A accuracy. The most common problems in using ACS712 chip are floating readings and correcting noise influence.

By Julian Spina
31 October 2020 0

PCB Etching overview with Inkjet and Photoresist Dry Film (Part 1)

DIY intro to etching without using a laser printer DIY PCB prototyping can be fun especially using recycled and cost…

By Julian Spina
8 September 2020 23

Simple DC Voltage and Current limiter

Protect circuits using LM317 What happened is this: I made my first low-cost photovoltaic system, a small 12V, 4 x…

By Julian Spina
3 August 2020 17

UEIUA CPY-2420 Review and possible problems

20A MPPT Regulator for solar systems CPY 2420 This is a cheap true MPPT regulator from UEIUA chinese producer, you…

By Julian Spina
31 May 2020 2

Impianto Fotovoltaico a basso costo [IT]

Descrizione progetto Fotovoltaico sìì! Come molti di noi trovo affascinante questo argomento e dopo tanto esitare mi sono deciso a…

If you're interested to Vintage Boards contact me or see the Vintage Section

Hot Sale ACS712 5A 20A 30A

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Latest Articles

  • Control Water Pump using ESP8266 ESP12E (DRAFT) 25 August 2022
  • Easy Programming ESP-12E using ESP-8266 6 June 2022
  • ATTiny/Arduino UNO AC current measurements with ACS712 22 March 2022
  • ACS712 Module problems – 30A version 29 December 2021
  • Arduino DC current measurement problems 21 March 2021

Comments

  • Julian Spina on Arduino DC current measurement problems
  • Don Fohey on Arduino DC current measurement problems
  • Julian Spina on Arduino DC current measurement problems
  • Don Fohey on Arduino DC current measurement problems
  • Julian Spina on UEIUA CPY-2420 Review and possible problems

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