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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)3 ^, h3 [9 a4 u7 ]) ~! B: T
- #include <ESP8266HTTPClient.h> t% E8 H0 _, K M8 b0 t, X) K" l) F9 o
- #include <ESP8266WiFi.h>
! e% Z! G2 @( m' ?. t" p- A - #include <ESP8266WiFiMulti.h>
5 }4 H% h7 n& a0 c9 z$ k - #include <ESP8266WebServer.h>
/ }5 s& f6 J% k1 C( P/ S - #include <arduino.h>, N+ O# F1 \0 S7 D, v
- ESP8266WiFiMulti WiFiMulti;! N0 J3 c3 I% z9 ?
- ESP8266WebServer server(80);
0 X9 L. }6 b; ?* s7 `* f - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 g- @1 [8 w3 X - ADC_MODE(ADC_VCC);
( Q( y( D, {* F) r* | - void setup() {- |( p4 n1 C. O2 d9 W' ^2 l
- Serial.begin(115200);
# N0 i1 u4 p* B - Serial.print("\r\n\n");. |0 }. L; w5 Z/ I* ^. H/ N
- pinMode(2,OUTPUT);
3 c5 P: Q Y0 [ - // WIFI
' H: \8 N3 S0 B% n7 V - WiFi.mode(WIFI_STA);
{/ j0 s( |6 Q2 Z: g! h( q7 K$ g - WiFi.hostname("Sparkle");3 Z0 W0 j% a7 ~+ R
- WiFiMulti.addAP("wifi ssid", "wifi password");
( d) Y3 F ^5 O7 {8 W - int tryNum = 15;/ b0 ^2 a6 n6 U4 t
- Serial.print("Connect WiFi");3 g% E8 P% {: c) ~3 d
- while (WiFiMulti.run() != WL_CONNECTED) {
% o/ a, z3 }4 A/ o4 [- l+ q) W - digitalWrite(2,0);
3 N% _0 _# H! Z - delay(200);
: E% h; r( Y- t. z* ]2 N" B) Y - digitalWrite(2,1);( X1 C+ P# H7 D3 c
- delay(300);
& r1 t& {* t5 k7 q4 {0 g; g# K! o3 [) ] - Serial.print(".");* e# q8 J/ J! l2 U( o6 p
- tryNum--;
; r3 l5 q- ]4 f" e+ T - if (tryNum == 0) {" N$ ^( w& q9 o+ A6 {, l
- // 1min- g; ^. t% w" {6 S. }: e) ? T- K
- // ESP.deepSleep(60e6);" y: _/ X% H9 U- A+ z. ~2 \$ g
- ESP.deepSleep(0);
2 `/ @0 ]8 K& K. r: o, n - }
O. ?3 P6 E0 t$ n K1 R2 ? - }9 }0 {$ T3 ^; h+ {$ {* U- t
- Serial.print("\r\n");" {4 O7 H! k( Q
- digitalWrite(2,1);" _6 k9 G7 o2 p$ }- ]/ Y
- Serial.print("IP address : ");
1 U9 Z# v# X' o# A) G7 x - Serial.println(WiFi.localIP());3 C. n0 x6 e2 |) a' v( H
- server.on("/", HTTP_GET, [](){
# X+ l% u; O! f8 a$ _8 I0 G/ S - server.sendHeader("Connection", "close");8 E. M6 K5 `1 r
- server.send(200, "text/html", serverIndex);1 T* h, [% \6 W. Z' |& h+ w
- });
/ W7 b+ v( A: S! s$ q0 o3 Z - server.on("/update", HTTP_POST, [](){2 f7 ?0 b4 W, a0 q
- server.sendHeader("Connection", "close");
9 `" u# W0 f% @. b5 ^# A7 s* g - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 V/ T: `# E3 t6 X* J. V - ESP.restart();
& m7 [4 v K J# `# w% _5 ~ - },[](){$ Q f) f1 n; r9 C
- HTTPUpload& upload = server.upload();
8 W: [* ]( K; W$ ^ - if(upload.status == UPLOAD_FILE_START){# ^% H2 D* v- Q
- Serial.setDebugOutput(true);* g2 O! O+ B) ?" {+ H9 N- U" k
- Serial.printf("Update: %s\n", upload.filename.c_str());5 }4 k. |% M3 ?% g& w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( x' s/ M0 s3 a! M( z - if(!Update.begin(maxSketchSpace)){
! L% G: M0 l: F5 ] x4 O0 g5 W - Update.printError(Serial);
( N$ w D g; ?( ~# O; ` - }
. o1 ^- ]* p ]9 u, _' Y) E - } else if(upload.status == UPLOAD_FILE_WRITE){
( Y2 m i/ e8 D- ?/ p0 B, f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 E. h# L2 j. [, J& W; [ - Update.printError(Serial);
9 ^2 |% y" \7 p! d, Z3 X2 q - }4 m7 g8 e, Z9 {8 T2 A: Q l
- } else if(upload.status == UPLOAD_FILE_END){0 K3 G* |5 a, k5 [" u- b6 F- F2 V
- if(Update.end(true)){
2 r8 P) o3 O1 N5 U+ C2 j) ] - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( b! N2 m" a. G. h! C' v. n# O - } else {* |: `8 v; a, _5 Y' ]
- Update.printError(Serial);
9 Q4 ]7 Y7 T X: J - }
! ^7 v& j- F, k - Serial.setDebugOutput(false);" j a3 j5 f" u3 g, e& r- E* ?
- }, N; S% k1 g! R7 o
- yield();! r5 P4 z! i9 U7 [6 D% l
- });
: t- y5 f0 {' q - ; v; M6 e4 z& c" y
- digitalWrite(2,0);. ~4 a5 Y* x" E, a' s
- mainAction();
5 H- A& @; q# c! {' V3 b* d m - if (digitalRead(0)){" U" n# z, o* `+ q+ ?5 T1 \# \: P
- ESP.deepSleep(0);
! U5 m: E, r8 j h& e' i% J2 U% o - } else {" E/ U/ t' _4 k% b- t& Q
- server.begin();
! [) }" N# [0 }4 w0 s - }, D* l Q1 A. j* X3 e1 C, g |
- }0 H- l0 O3 P' M
- void loop() {0 h% F, l3 ^1 a
- server.handleClient();
* K: ~6 T: b5 S* k6 a - delay(1);
+ s( r8 h6 ^, ~: r - }
0 L7 u2 Z) p: u% s0 I9 {5 Q5 Y5 R - String doGet(String url){
( j, l$ m- l4 \0 \8 v, r - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 K% Y) z9 b3 K0 J- }8 V% m - HTTPClient http;& K! ]* u' G5 d+ }0 h. _$ K
- Serial.println("[HTTP] begin...");
4 J) }- y9 q( t, g w - if (url.startsWith("https")) {: [) z4 \; R( g/ z2 \
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 @ }" u. Y2 L' i8 u7 `3 r0 V - } else {
* w+ h+ E* g% P+ \+ Q7 I% W0 N6 l6 F" p - http.begin(url);7 B; J1 b6 `) L A& ~
- }1 R1 V4 r' Y% Z+ s
- Serial.println("[HTTP] GET...");
# w! ? [0 S" t% N( P( \ - int httpCode = http.GET();0 `7 i* J3 S1 l }; V7 `
- if (httpCode > 0) {) o' [7 h3 }1 ^: ^+ ]# H
- Serial.printf("[HTTP] code: %d\n", httpCode);$ e4 A4 `! |, e5 F; F: R: d- b. T
- if (httpCode == HTTP_CODE_OK) {: F* o' B$ M9 M" {
- String payload = http.getString();# [! b' C4 k, ], \, {# ?# v
- Serial.println(payload);
$ N: b( _& \3 u$ U+ c) c$ X: r+ l4 H - Serial.print("\r\n");
2 B+ c8 l0 p3 v! i - return payload;& |) k. Y( O- o5 C
- }
6 u$ K, b1 v! W$ l; Y - } else {
" f8 E5 e/ q2 N1 C1 l X - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 Q) o( }, M5 z* Q2 j. h! ? - http.errorToString(httpCode).c_str());
9 L: ^0 t0 `6 u' W! m+ d9 f" \ - }3 |# j; b5 w* P, N
- http.end();' u8 \ J$ A( ^% i7 l
- return "";- O% i2 H% m+ v2 Z) g' [
- }1 Q' l8 Y2 g( R! t
- }
1 F3 p1 c! ]2 |. o' c - void mainAction() {( d m% m3 X( J! H
- // 发送请求/ u& A* U+ p8 ?& c; D1 P
- doGet("http://google.cn");
+ I: Q: k8 m) d; n6 `: t$ V P - }
8 y3 i/ g' o$ `" P1 h6 H* C
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