Most converters treat hex as one big number. Mine respects byte order.
This is the killer feature. I mapped the common Orange 5 buffer sizes.
ROMARIO-CALCS is a lightweight, Windows-based utility designed specifically to sit next to your Orange 5 software. It is not a replacement for Orange 5. It is a "swiss army knife" for the data you just read. My software ROMARIO-CALCS for programmer ORANGE 5 - MHH
The goal was simple: Select a line of hex from Orange 5, paste it into ROMARIO-CALCS, and get every possible calculation instantly.
I wrote this in Python 3.11 using Tkinter for the GUI so it runs on old Windows 7 shop laptops and Windows 11 alike. Most converters treat hex as one big number
The core logic snippet for the Endian swap (what Orange 5 lacks):
def swap_endian(hex_string):
bytes_list = hex_string.split()
if len(bytes_list) % 2 != 0:
return "Error: Odd number of bytes"
swapped = []
for i in range(0, len(bytes_list), 2):
if i+1 < len(bytes_list):
swapped.append(bytes_list[i+1])
swapped.append(bytes_list[i])
return ' '.join(swapped)
Integration trick: I added a global hotkey (Ctrl+Shift+R). When you highlight hex in Orange 5 and hit that hotkey, ROMARIO-CALCS auto-pastes and calculates. No clicking required. Integration trick: I added a global hotkey ( Ctrl+Shift+R )
Users typically read a "dump" (binary file) from a vehicle's ECU or dashboard using the Orange 5 hardware. This dump is then loaded into ROMARIO-CALCS for analysis.
Over years of development, ROMARIO-CALCS has accumulated support for:
The software is updated periodically by Romario based on requests from MHH forum members. You can find the latest version pinned in the "Software & Tools" section of MHH Auto.