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/ eb_tester_digital_load.txt
Created
February 6, 2018 21:52
Reverse engineering a cheapo digital load
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| The digital load is found here: | |
| https://www.aliexpress.com/item/35W-computer-software-online-USB-tester-USB-Discharging-Load-QC2-0-3-0-MTK-PE-Trigger/32707276028.html?spm=a2g0s.9042311.0.0.K9VDeF | |
| It uses a binary protocol over the UART for control and data returned. I used the free version of "Device Monitoring Studio" | |
| to view the data sent and received from the UART. | |
| So far, I have decoded the commands to get the digital load to do things, except for how to compute the checksum byte. | |
| Here's what there is so far: | |
| ------------------------------------------ |
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| #include "FreeRTOS.h" | |
| #define LED1 14 | |
| #define LED2 22 | |
| TaskHandle_t Task1; | |
| TaskHandle_t Task2; | |
| void codeForTask1(void *parameter) | |
| { | |
| while(1) |