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(ancient) T-Beam v07 support #3516

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@lanmarc77

Hi, I think I have a very old T-Beam.
I found a PCB text which says:
T22_V07
20180711

and v1.17.1 complains when starting:

ets Jun  8 2016 00:22:57
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:1184
load:0x40078000,len:13232
load:0x40080400,len:3028
entry 0x400805e4
[  1479][E][esp32-hal-i2c.c:260] i2cSetClock(): bus is not initialized
[  1486][E][Wire.cpp:526] write(): NULL TX buffer pointer
[  1491][E][Wire.cpp:526] write(): NULL TX buffer pointer
[  1496][E][Wire.cpp:526] write(): NULL TX buffer pointer
[  1502][E][Wire.cpp:526] write(): NULL TX buffer pointer
[  1507][E][Wire.cpp:526] write(): NULL TX buffer pointer
[  1512][E][Wire.cpp:448] endTransmission(): NULL TX buffer pointer

This model does not seem to have any PMU (at least I could not find one on the PCB) and the I2C is on 21/22.
Can you provide a version that works without PMU and with I2C on different pins?

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