It is one of those perfect devboard i need for my projects, especically my IoTs one, and i was pretty tired of conecting different modules together, wiring em and all, SO i thought that why cant i make a board that fulfills my need, and this may even come handy for many other hackers/dev too. This board comprises of inbuilt BMS, GSM, GPRS, GPS, RS485 communication, mic, speaker, sd slots etc with the main brain being esp32 s3 and A9G for gps/gprs/gsm.
lots of IoT projects u can think of plus normal projects too that needs lot of flash or eeprom
Its pretty simple, you can just upload the code in firmawre/ through the usb connector or power it through the jst, and just upload code , interact with other modules as describe in schematic and BOOM ur powerful devboard workingggg., some serial cmds to test the board:
help or ? - show command menu
status - show system info
reboot - restart system
sd.ls - list files
sd.cat - read file
sd.rm - delete file
gsm.at - send AT command
gsm.rssi - signal strength
gsm.sms - send SMS
gps.on - enable GPS
gps.off - disable GPS
gps.loc - get GPS location
485.tx - send data
pin.set <0|1> - set pin state
pin.get - read pin state
pwr.sleep - light sleep
pwr.vbat - read battery voltage
This page contains the whole power system of the board starting off we have the usb-C connector for both charging and coding, then we have BMS, a 5v Boost converter and a 3v3 linear regulator
after that we have,
this page does the heavy work, with the first u can see the esp32-block along with its peripherals and the breakout connectors. after that we have A9G with its peripherals . and so with the max3485, buttons, jumpers, sd card, mic , speakers etc
| Item name | Quantity | Unit Cost (₹) | Link | Total (₹) |
|---|---|---|---|---|
| 100 nF Capacitor 0603 (pack of 20) | 1 | 11 rs | link | 11 rs |
| 10 uf Capacitor 0603 (pack of 20) | 1 | 21 rs | link | 21 rs |
| 1 uf Capacitor 0603 (pack of 20) | 1 | 15 rs | link | 15 rs |
| 470 uF electrolytic capacitor SMD | 1 | 11 rs | link | 11 rs |
| 100 uF electrolytic capacitor SMD | 1 | 7 rs | link | 7 rs |
| 1k resistor 0603 (pack of 20) | 1 | 8 rs | link | 8 rs |
| 10K resistor 0603 (pack of 20) | 1 | 9 rs | link | 9 rs |
| 1.2k resistor 0603 (pack of 20) | 1 | 8 rs | link | 8 rs |
| 100Ω resistor 0603 (pack of 20) | 1 | 9 rs | link | 9 rs |
| 5.1k resistor 0603 (pack of 20) | 1 | 6 rs | link | 6 rs |
| 75K resistor 0603 (pack of 20) | 1 | 9 rs | link | 9 rs |
| 22Ω 0603 resistor (pack of 20) | 1 | 5 rs | link | 5 rs |
| 2.2K 0603 resistor (pack of 20) | 1 | 8 rs | link | 8 rs |
| 10Ω 0603 resistor (pack of 20) | 1 | 11 rs | link | 11 rs |
| USB TYPE-C 3.1 16 PIN | 2 | 6 rs | link | 12 rs |
| ESP32-S3-WROOM-1 N16R8 Module | 1 | 367 rs | link | 367 rs |
| A9G GSM/GPRS/GPS Module | 1 | 650 rs | link | 650 rs |
| AMS1117-3.3V Voltage Regulator SOT-223 | 2 | 8 rs | link | 16 rs |
| DW01A Battery Protection IC | 2 | 4 rs | link | 8 rs |
| MT3608 Step-Up Converter | 1 | 11 rs | link | 22 rs |
| FS8205A | 2 | 5 rs | link | 10 rs |
| schotkky diode | 2 | 3 rs | link | 6 rs |
| LED green 0805 SMD (pack of 50) | 1 | 20 rs | link | 20 rs |
| LED yellow 0805 SMD (pack of 50) | 1 | 20 rs | link | 20 rs |
| Microphone CMA-4544PF-W | 1 | 45 rs | link | 45 rs |
| 2P Battery Connector 2.00mm | 1 | 13 rs | link | 13 rs |
| Male Berg strips | 2 | 14 rs | link | 28 rs |
| Robu Shipping charges | 1 | 50 rs | 50 rs | |
| quartz shipping charges | 1 | 50 rs | 50 rs | |
| aero kart india shipping charges | 1 | 125 rs | 125 rs | |
| Tax | 1 | 158.40 rs | 180.40 rs |
| Item name | Quantity | Unit Cost (usd) | Link | Total (usd) |
|---|---|---|---|---|
| 47 uF 0603 | 10 | 0.0627 usd | link | 0.63 usd |
| 22 uF 0604 | 5 | 0.0501 usd | link | 0.25 usd |
| TP4056-42-ESOP8 | 5 | 0.1864 usd | link | 0.93 usd |
| 22 uH inductor SMD | 5 | 0.1782 usd | link | 0.89 usd |
| tactile switches | 20 | 0.0322 usd | link | 0.64 usd |
| SIM card holder | 2 | 0.393 usd | link | 0.79 usd |
| SD card holder | 10 | 0.0513 usd | link | 0.51 usd |
| ufl connector | 10 | 0.0399 usd | link | 0.40 usd |
| MAX485ESA+T | 2 | 0.9175 usd | link | 1.84 usd |
