View source for Instant Omni Pro 18 Toaster Oven and Air Fryer

= Intro =

This particular device is some version of functional, with some dim display segments and plausibly faulty touch regions. Display/buttons communicate with the main power and relay board using something like serial communications around <strike>1200bps</strike> 600/625bps. Reverse engineering the communication protocol to implement an alternative control interface. So far blinky and "singing" CW has been achieved using oscilloscope and logic analyzer dumps and then re-creating the signals using an ESP32-S3 running Micropython.

See also: [[Whirlybird]] for ESP32-S3-WROOM-2 details.

Recovered as part of unrelated e-waste pickup of Coffee Brew bits.

[[File:Instant Omni Pro Front Exterior Light On 400 F 10 Minute Start Cancel.jpg|797px]]

Note: RXD replaces TX, TXD replaces RX, reciprocal of Front Panel connection. 5 volt and Ground White/Yellow, data Black/Red (WTF).


== Docs ==

*https://www.manualslib.com/manual/3150587/Instant-Pot-Omni-Pro.html
*https://www.lcsc.com/datasheet/lcsc_datasheet_2304140030_Sinowealth-SH79F1612AM_C181997.pdf
*https://www.lcsc.com/datasheet/lcsc_datasheet_1808081643_MBI-MBI5124GP-B_C256866.pdf


== Image Gallery ==
'''Click any image to expand, use side arrows or left/right keys to navigate as slideshow.'''
<gallery>
BrewBird Coffee Grinds e-waste with Toaster Oven and Air Fryer.jpg
Instant Omni Pro Front Exterior Light On 400 F 10 Minute Start Cancel.jpg
Instant Omni Pro 08-00 Fully Illuminated Time Display.jpg
Instant Omni Pro Oven Target 135 F Partially Dim.jpg
Instant Omni Pro Front Panel Access Lower Screws Removed.jpg
Instant Omni Pro Front Panel Pyring Off Right To Left.jpg

Instant Omni Pro Interior Toaster Lower Heating Elements.jpg
Instant Omni Pro Interior Air Fryer Element Fan.jpg
Instant Omni Pro Interior Light Rotisserie Drive.jpg
Instant Omni Pro Top Uncovered.jpg
Instant Omni Pro Left Side Uncovered.jpg
Instant Omni Pro Left Side Uncovered .jpg 
Instant Omni Pro Locking Spade Connector Back.jpg
Instant Omni Pro Locking Spade Connector Front.jpg

Instant Omni Pro EK-180X10C-US-P PCB Top.jpg
Instant Omni Pro EK-180X10C-US-P PCB Relay Board Data Connection.jpg
Instant Omni Pro EK-180X10C-US-P PCB Bottom.jpg
Instant Omni Pro SH79F1612AM Relay Board MCU.jpg

Instant Omni Pro EK-180X10A-PRO PCB.jpg
Instant Omni Pro EK-180X10A-PRO BF7615BM44-LJTX WTC5 MCU.jpg
Instant Omni Pro EK-180X10A-PRO MBI5124 U5 16 Channel Constant Current IC.jpg
Instant Omni Pro EK-180X10A-PRO Flat Flex Connector.jpg

Instant Omni Pro Tek Oscilloscope Message 10ms.jpg
Hacker Dojo - Tektronix TDS1001B Oscilloscope USB Verify.jpg
Instant Omni Pro TX Tek 50ms.jpg
Instant Omni Pro TX Tek 10ms Single Message.jpg
Instant Omni Pro TX Tek 1ms - 11110 - 5 Bits 8ms Measurement.jpg
Instant Omni Pro TX Tek 250us - 890us Single High Square Wave Measurement.jpg
Instant Omni Pro TX-RX Tek 10ms.jpg

Instant Omni Pro Improvised Double FTDI Serial-USB Sniffer.jpg
Instant Omni Pro Improvised Double FTDI Serial-USB Sniffer Connected.jpg
Instant Omni Pro Improvised Double FTDI Serial-USB Sniffer Dump.jpg

Hacker Dojo - Logic 8 saleae Analyzer.jpg
Instant Omni Pro EK-180X10A-PRO PCB TX-RX-GND Logic Analyzer Connected.jpg
Instant Omni Pro EK-180X10A-PRO PCB VCC-GND-TX-RX Tap Close.jpg
Instant Omni Pro EK-180X10A-PRO On On Off Off 4 Aligned Capture Samples.png


Instant Omni Pro Micropython Code Messages.png
Whirylbird ESP-32-S3-WROOM-2 32R8V - 0 RST GND TX RX VCC Header.jpg
Instant Omni Pro Tap VCC-GND-TX-RX Wiring.jpg
Instant Omni Pro Tap Wiring Close.jpg

Instant Omni Pro Test Setup Level Shifter Testing.jpg
Instant Omni Pro ESP32 Tx Yellow Toaster Tx Purple.jpg
Instant Omni Pro SIGNLENT 500us ESP32 Tx 3v3.jpg
Instant Omni Pro SIGNLENT 500us ESP32 Tx 5v Level Shift.jpg


Instant Omni Pro Back To School FARS.jpg
Instant Omni Pro ESP-32-S3 Breadboard Level Shifter.jpg

</gallery>


== Code ==

=== Micropython ===

==== vvv.py ====

Winner winner Chinese Dinner! FARS Home Brew QSV Edition.

<pre>
from machine import Pin
from time import sleep_us, sleep_ms, ticks_us, ticks_diff, localtime

print("instatoast vvv")

# "Message" starts with LHL then 10 PRE "Bits" then 44 or 43 Dx "Bits"
# Each "Bit" ends Low, each "Message" ends holding High

LHL = (4450,9140,4450) # Low High Low start
NIB = 800
BIT = 1600

# 0 Bit = BIT Low
# 1 Bit = NIB High, NIB Low

PRE = (1,1,1,1,0,1,1,1,1,0) # Preamble


D0 = (1,1,1,1,1,1,1,1,1,1, 0,1,0,1,1,0,1,0,1,1, 1,1,1,0,1,0,1,1,1,0, 1,0,1,0,1,1,0,1,0,1, 1,1,1)
D1 = (1,1,1,1,1,1,1,1,1,0, 1,0,1,0,1,1,0,1,0,1, 1,1,1,1,0,1,0,1,1,1, 0,1,0,1,1,1,0,1,0,1, 1,1,1)
D2 = (1,0,1,1,1,1,1,1,1,1, 0,1,1,0,1,1,0,1,0,1, 1,1,1,1,0,1,0,1,1,1, 0,1,0,1,1,0,1,0,1,0, 1,1,1,1)
D3 = (1,0,1,1,1,1,1,1,1,1, 1,1,0,1,1,0,1,0,1,1, 1,1,1,0,1,0,1,1,1,0, 1,0,1,0,1,0,1,0,1,0, 1,1,1,1)

rxPin = Pin(0, Pin.IN)
txPin = Pin(43, Pin.OUT, value=1)

sleep_ms(100)

def send(bits):
 txPin.off()
 sleep_us(LHL[0])
 txPin.on()
 sleep_us(LHL[1])
 txPin.off()
 sleep_us(LHL[2])
 for b in bits:
  if b == 1:
   txPin.on()
   sleep_us(NIB)
   txPin.off()
   sleep_us(NIB)
  else:
   sleep_us(BIT)
 txPin.on()



def vvv():
 while True:
  send(PRE+D2)
  sleep_ms(60)
  send(PRE+D3)
  sleep_ms(60)
  send(PRE+D2)
  sleep_ms(60)
  send(PRE+D3)
  sleep_ms(18)
  send(PRE+D2)
  sleep_ms(18)
  send(PRE+D3)
  sleep_ms(500)

  send(PRE+D0)
  sleep_ms(60)
  send(PRE+D1)
  sleep_ms(60)
  send(PRE+D0)
  sleep_ms(60)
  send(PRE+D1)
  sleep_ms(18)
  send(PRE+D0)
  sleep_ms(18)
  send(PRE+D1)
  sleep_ms(500)
vvv()

</pre>



== MCU BF7515BM44 ==

BF7515BM44-LJTX SPEC V1.5

Home appliance 8-bit general-purpose MCU

 BF7515BM44-LJTX MCU General Description
Features
 Core: 1T 8051 ○ Operating frequency: 12M, 8M, 4M, 1M,  Operating Voltage: 2.5V~5.5V
○ Clock error: ±1% @25℃, 5V  Operating Temperature: -40℃~+105℃
○ Enhanced industrial grade, in line with JESD
±3% @-40℃ ~ +105℃, 5V
 Memory (FLASH) ○ CODE: 63K Bytes  12-bit High-speed ADC
○ DATA: 1K Bytes +2*512 Bytes ○ Up to 42 analog input channels
○ SRAM: 256 Bytes(data)+4K Bytes(xdata) ○ Built-in reference voltage 4V
○ Support 2K/4K/8K BOOT function area  Interrupt
 Clock Source, Reset ○ Two-level interrupt priority capablity
○ Internal low-speed clock LIRC: 32kHz ○ ADC, LCD, LED, INT0/1/2/3, LVDT ,
industrial grade reliability certification standards
Clock error: ±15%@25℃, 5V
Timer0/1/2/3, UART0/1/2, IIC, WDT, SPI
±35%@ -40℃ ~ +105℃, 5V
interrupt
○ Internal high-speed RC oscillator: 1MHz  Timer
○ External crystal oscillator: 32768Hz ○ 16-bit Timer0/1/3, 32-bit Timer2
○ 8 resets, brown-out voltage (Bor): 1.9V ○ Timer2 clock source: internal low-speed clock
○ Low voltage detection: 2.7V/3.0V/3.8V  IO ○ Watchdog timer, overflow time 18ms to 2.304s
○ Built-in pull-up resistor 30k  LED Driver
○ High current sink port (PB0~PB7) ○ Support 7*8, 6*7, 5*6, 4*5 dot matrix driver
○ Support IO function remapping ○ Support up to 8 COM x 8 SEG matrix driver
○ IO ports support external interrupt function,  LCD Driver
INT0~3 (rising-edge, falling-edge, double-edge), ○ Support 4*16, 8*16, 4*20, 5*19, 6*18
INT4(rising-edge, falling-edge)  Low power management
 Communication Module ○ Idle mode 0 and Idle mode 1
○ 3*UART communication, support IO mapping ○ Idle mode 1, power consumption 26uA@5V
○ 1*IIC, support 100/400kHz, support IO mapping  With JTAG debugging emulation interface
○ 1*SPI, support up to 2MHz  Package
 16-bit PWM ○ PWM0/1 both support 3-channel output, share ○ LQFP44
LIRC 32kHz or XTAL 32768Hz
period and duty cycle
○ PWM2 support 1 channel output
○ PWM3 support 1 channel output
Datasheet

= Log =

TBD: [[User:-.-6eau|-.-6eau]] ([[User talk:-.-6eau|talk]]) 06:04, 2 October 2024 (UTC)

== October 1st, 2024 ==
# Added FARS presentation images to wiki
# Added additional images and information to wiki

== September 30th, 2024 ==
# Detailed Oscilloscope Decoding of "Proof" & "Dehydrate" messages
# Confirmed controllable enable/disable low and high heat
# Found alternative long tone "dahhh" command

== September 29th, 2024 ==
# Wiki "hellorld", documentation started

== September 27th, 2024 ==
# Integrated Bi-Directional Level Shifter
# Got first successful ESP32/Micropython Toaster Blink
# Hacked Toaster "beep" to generate "dit" and "dahhh"
# Presented at FARS Annual Home Brew Night "Singing Toaster QSV"

== September 26th, 2024 ==
# First attempted ESP32/Micropython data capture (Worked to some extent)
# First attempted ESP32/Micropython data transmit (Generated signal, did not function)

== September 25th, 2024 ==
# Added Front Panel (Back) Header Tap
# Initial Logic Analyzer Capture

== September 24th, 2024 ==
# More WhirlyBird RE

== September 23rd, 2024 ==
# More WhirlyBird RE

== September 22nd, 2024 ==
# WhirlyBird first blink

== September 21st, 2024 ==
# More WhirlyBird RE

== September 20th, 2024 ==
# Initial WhirlyBird RE
# Initial Toaster Teardown
# Initial Toaster Probing

== September 19th, 2024 ==
# Items (e-waste) identified
# Items Loaded
# Toaster pulled from trunk and thrown on top
# Items Transported
# Items repacked and parked
# Initial Sort