SMD OVEN F1

Status:

Finally ending PCB vs 1.2

Overview

Dedicated OVEN controller with LCD, USB connectivity & WiFi capabilities, is designed to control electric ovens (but not only), and can be used in stand-alone mode (with LCD touch screen), via Serial,USB or WiFi (802.11 b/g/n).

I did this pcb to control an electric oven that I use for welding (SMD) components, from time to time i change the PCB to meet my requirements or add different functionality

Some features on the card:

  • Isolated Zero detection of AC Line with Optocoupler
  • Main Crystal 8Mhz (=> 72MHz)
  • 3 Thermocouple Input (Detect sensor polarity, Not Attached), Protected & filtered
  • 2 Connectors to read temperature from another area (1-Wire or Analog)
  • Can read Temperature from -200°C to +1600°C
  • Programming connector (SWD) + Serial (TTL) Pins for firmware upgrade
  • 1 Tactile Reset Button
  • LCD/Touch Screen Header connector or Display port
  • Fan Header (PWM Controlled) 12V
  • 2 Oven On/Off Header
  • SMT Transducer Buzzer
  • Expansion Header with 8 GPIO + USB signals
  • 32-bit ARM Cortex-M3 core
  • Wireless connectivity 802.11 b/g/n
  • O/S Multitask
  • The Onboard Wifi module can be powered off with Jumper
  • Header for another (different) Wifi module

Improvements

If you think this board may be improved in some way let us know, we will work on future revisions with your feedback in mind.

Technical Docs

Board version 1.2

Update

07/02/2016 Update PCB to vs 1.2, ESP8266 firmware quite ready, need debug, USB connector removed (signals now on the expansion header), board hole size/position, now are compatible with Multiboard & Display port PCBs, changed the power section, use more efficient chips.

10/06/2015 PCB fab accept new Board layout

26/05/2015 Published preliminary Board layout (vs 1.1a)

03/05/2015 I not write much, but work continue… part of the firmware is done, but found some small hardware problem, so i’ve rebuilt the board, soon i public some photos, in the meantime i must stop build firmware and send gerber to PCB factory (after redefine some hardware details)

 

04/04/2015 Board assembled, with only 1 thermocouple, without WiFi

ovenf1_10_20150403_002ovenf1_10_20150403_001ovenf1_10_20150403_003

02/04/2015 PCB Arrived

17/03/2015 PCB ready and shipped

09/03/2015 sent gerber file to farm

02/03/2015 published preview 1.0

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