elfgoh

#include "SoftwareSerial.h"
#include <VC0706_UART.h>
#include <SD.h>
#include <SPI.h>
#define SS_SD  10

//use software serial
SoftwareSerial cameraconnection(2,3);//Rx, Tx
VC0706 cam = VC0706(&cameraconnection);
//use hardware serial

elfgoh

boolean VC0706::motionDetected(void)
{
    if (_read(4, 200) != 4) {
        Serial.println("in read");
        return false;
    }
    if (!_verify(VC0706_COMM_MOTION_DETECTED)){
        Serial.println("in verify");
        Serial.println(_verify(VC0706_COMM_MOTION_DETECTED));

elfgoh

uint8_t VC0706::_verify(uint8_t cmd)
{   
    if((vcBuff[VC0706_PTL_BYTE] != VC0706_RECV_MARK) ||
       (vcBuff[VC0706_SERIAL_BYTE] != VC0706_SERIAL_NUMBER)){
        DBG("return format error\n");
        return RESP_DATA_FORMAT_ERROR;
    }

    if(vcBuff[VC0706_CMD_BYTE] != cmd){
        DBG("return command error\n");

elfgoh

#!/bin/sh
# A simple git pre-commit hook that checks if any public keys in the current directory with extension .pub is secure
for i in $(ls pubkeys/*.pub)
	do
		# DSA is insecure
		f=$(ssh-keygen -l -f $i | cut -d "(" -f2 | cut -d ")" -f1)
		echo "$f"
		[ "$f" = "DSA" ] && echo "DSA is insecure: $i" && exit 1

		#RSA < 2096 bits is not that secure

elfgoh

# cat strace.log
1762  execve("/usr/bin/python3.4", ["python3.4"], [/* 15 vars */]) = 0
1762  brk(0)                            = 0x110e000
1762  uname({sys="Linux", node="spdibox-3716BBBK0D3E", ...}) = 0
1762  access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
1762  mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6fcd000
1762  access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
1762  open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
1762  fstat64(3, {st_mode=S_IFREG|0644, st_size=17658, ...}) = 0
1762  mmap2(NULL, 17658, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6fc8000

elfgoh

# dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.4.48-ti-r88 (root@b1-omap5-uevm-2gb) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Sun Feb 12 01:06:00 UTC 2017
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: TI AM335x BeagleBone Black
[    0.000000] cma: Reserved 48 MiB at 0x9c800000

elfgoh

# cat /boot/uEnv.txt
#Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0

uname_r=4.4.48-ti-r88
#uuid=
#dtb=

##BeagleBone Black/Green dtb's for v4.1.x (BeagleBone White just works..)

##BeagleBone Black: HDMI (Audio/Video) disabled:

elfgoh

# cat trace.txt
14432 execve("/usr/bin/python3.4", ["python3.4"], [/* 15 vars */]) = 0
14432 brk(0)                            = 0x1f18000
14432 uname({sys="Linux", node="spdibox-3716BBBK0D3E", ...}) = 0
14432 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
14432 mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6f59000
14432 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
14432 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
14432 fstat64(3, {st_mode=S_IFREG|0644, st_size=17658, ...}) = 0
14432 mmap2(NULL, 17658, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6f54000

elfgoh

# dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.4.48-ti-r88 (root@b1-omap5-uevm-2gb) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Sun Feb 12 01:06:00 UTC 2017
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: TI AM335x BeagleBone Black
[    0.000000] cma: Reserved 48 MiB at 0x9c800000

elfgoh

We are looking for volunteers to join us in organising GeekcampSG 2017[1]. It is essentially a community conference for geeks covering both software and hardware.

We are looking for each volunteer to take up a tiny portfolio, and hopefully more than 1 volunteer per portfolio for redundancy. First timers welcomed and mentorship will be provided if needed. Please let me know if you are interested to help, or be a speaker!

Off the top of our heads, these are the areas where help is needed:

- accounting + finance
- afterparty
- design
- Emcee