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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)
2 E4 z T4 l# `& M3 q- #include <ESP8266HTTPClient.h>
6 {+ w- `. i/ x1 d5 `' k0 j - #include <ESP8266WiFi.h>2 V7 C5 s8 A, |
- #include <ESP8266WiFiMulti.h>, T q& {, @+ ?- Z0 G1 l* i
- #include <ESP8266WebServer.h>/ e" Y$ }0 U, \: a$ Z
- #include <arduino.h>% y8 i% `+ l* F- Q5 Q! F( z
- ESP8266WiFiMulti WiFiMulti;. W3 C$ E5 F. f- l4 b
- ESP8266WebServer server(80);3 r5 ]- Q; c. H: A6 D
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. Z. U2 j- G: i' r& v
- ADC_MODE(ADC_VCC);
: J9 i5 [4 l; q7 H- x! p. h5 U) O - void setup() {
3 P: M; ` f3 x% W - Serial.begin(115200);
1 }9 B, o, c: m4 _- d6 O - Serial.print("\r\n\n");% Y$ y: s2 b& }2 W5 Q7 ]4 ?' Q
- pinMode(2,OUTPUT);
$ G" U! i& V6 U) c) ~! z - // WIFI
9 Y& y) f1 _: R' v - WiFi.mode(WIFI_STA);3 ?( v: t7 k8 @! Q; {
- WiFi.hostname("Sparkle");
5 i* f1 e- C. N( i - WiFiMulti.addAP("wifi ssid", "wifi password");
: ]- i* \* X/ E. S - int tryNum = 15;. t4 L! q0 G8 d# g6 }" I
- Serial.print("Connect WiFi");+ h1 _( }$ V% y$ G" \
- while (WiFiMulti.run() != WL_CONNECTED) {
/ f. G5 y( ^5 n8 k: Q, C+ A - digitalWrite(2,0);3 \4 H- d8 @3 i3 [1 X. h
- delay(200);
$ h0 @6 k1 U( |% R4 X7 {+ k - digitalWrite(2,1);
" ?# z; C. H" x' W - delay(300);
* E- n! k' Z, K, P2 h+ m - Serial.print(".");/ R9 i+ q* l1 P) o: o1 r7 f. Z
- tryNum--;
# \. e" B; @" P - if (tryNum == 0) {
2 d7 F: b ~! W8 w* P - // 1min% ]( U6 c. v4 [
- // ESP.deepSleep(60e6);/ Y1 g. o* T" B( { Q" D9 Y; {
- ESP.deepSleep(0);* B( H( ?! L7 G+ {4 `3 i+ A
- }( Z: b( i! l0 @+ i ~0 E
- }# t' z3 ]% T& Z- B+ t
- Serial.print("\r\n");
! e5 M2 ?" d% k6 x" P - digitalWrite(2,1);) p+ t ~2 b, @3 y
- Serial.print("IP address : ");# o+ y* j! D& S( J( Q& r
- Serial.println(WiFi.localIP());
. ^* I: B3 U; a - server.on("/", HTTP_GET, [](){' l a B* {% d4 d" p( y
- server.sendHeader("Connection", "close");: W, p0 w0 C/ [, ~/ e. z6 y' _
- server.send(200, "text/html", serverIndex);1 U* g0 s6 h( }" Y3 R
- });- @. q( X. X# S: F
- server.on("/update", HTTP_POST, [](){
6 {0 ~* x6 G6 t+ Q) ?$ Z- z - server.sendHeader("Connection", "close");
& e6 s# L: h( L! r - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 {/ ~. R: y4 h" u
- ESP.restart();
5 N: S0 N& r# _* ^6 b - },[](){
3 c/ ~+ H% ]; X2 D3 [9 Y - HTTPUpload& upload = server.upload();7 N( ^4 c" c- c( e0 n
- if(upload.status == UPLOAD_FILE_START){
. o- Z3 t+ d, y3 _2 V% J1 p - Serial.setDebugOutput(true);7 M( Q) q# h! |) R' @
- Serial.printf("Update: %s\n", upload.filename.c_str());
) k& ^ H4 b2 r8 S1 }8 Y; w - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% U, p g- `6 u ], E8 m9 i- D; g
- if(!Update.begin(maxSketchSpace)){
3 q3 X) S6 y( V5 ]# h6 f4 L) v. ~7 S - Update.printError(Serial);
. v; b" x* x( l% l - }
( m$ `* y2 R) G - } else if(upload.status == UPLOAD_FILE_WRITE){
2 Z( R4 g1 j5 @: K5 h; v - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 [+ [! R$ B* q6 @( o- V8 t$ N
- Update.printError(Serial);
" q7 l7 q. @8 {) |0 N7 L - }
3 W5 J3 s9 a J - } else if(upload.status == UPLOAD_FILE_END){
% a5 F9 n5 |2 u: N, I/ l - if(Update.end(true)){5 p3 j, w! w+ b1 {) z* F& M
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% z3 K F0 Z6 p: I; y - } else {5 O! y6 U! M8 R$ Q/ H, o
- Update.printError(Serial);; l+ S$ O% o8 O0 `% m$ G! s* u, H
- }. j9 S, L" p# w& o
- Serial.setDebugOutput(false);; W* q$ S% Z2 n6 n
- }
, ^& Y' s+ Y: i/ j* F) ?- t% W - yield();
$ r" D# Z/ K4 ~9 F( ^4 E- _ - });! `- o! j5 ]/ ]. e5 x6 H7 o
- " }; o- s( g: n( m+ z
- digitalWrite(2,0);# u" v0 E* e7 ^( O: c: r
- mainAction();
' q: G- _0 ^$ O/ ~2 w( B2 ^; _$ D - if (digitalRead(0)){* G" ]. g+ [! Z9 {8 @# w
- ESP.deepSleep(0);
, r* v! h+ z a7 c! L4 ? - } else {
) N& i% ?% O. W8 K' E& P, ?6 ] - server.begin();
+ J0 E% `8 [+ O( k' [ - }5 u% z! r% F7 ^8 u: Q0 ^
- }+ G9 n# w1 V8 b/ @; c, W9 ?' k+ J* e
- void loop() {+ z; J2 m$ H# W; c
- server.handleClient();; o* H8 ]' |6 z% b
- delay(1);' F. x. `$ b5 d+ W* E c/ k
- }
" V( s) U& j9 k& H% M - String doGet(String url){
$ ?4 i9 k0 l8 ]( z$ V# l% S: E - if ((WiFiMulti.run() == WL_CONNECTED)) {) t6 k2 c( u2 n& V9 P, K
- HTTPClient http;$ I- Y p" U1 |0 a P% p; I% Z, v) u6 L
- Serial.println("[HTTP] begin...");% \5 u1 H3 I+ {( E, u& U
- if (url.startsWith("https")) {
; B2 O0 h9 d/ T - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 S4 F7 O9 |. H9 Y* V8 Q' f; G - } else {8 g. i' v2 t! g9 k3 Y, V T2 g4 S
- http.begin(url);
1 e( [& Q' ]# M6 f - }' j: t$ C8 v% e. @$ Y# k- T$ t0 A
- Serial.println("[HTTP] GET...");
& p# e+ a4 S+ C. A+ k$ C; v' T - int httpCode = http.GET();
7 V# S+ A1 ?3 [/ \3 V( L - if (httpCode > 0) {- T4 j$ { o. Z) e6 M2 Z9 S
- Serial.printf("[HTTP] code: %d\n", httpCode);+ y- E2 r! E+ p) @5 J) Y' D' B$ K+ ~! M
- if (httpCode == HTTP_CODE_OK) {- B! X/ @6 j7 L* b% d( u) N
- String payload = http.getString();* {: Q+ w ?, @
- Serial.println(payload);
6 ^' e! h# J6 u# V: V$ L$ F+ ]) w - Serial.print("\r\n");
: @2 p2 z1 g& U \) O5 j5 O- I& ^ - return payload;
( Y3 d$ \1 V2 ^+ e: Z2 n' U - }. E1 u) w! B; e! e; l' v
- } else {
S Q1 c! k0 _% C) c' ] - Serial.printf("[HTTP] GET... failed, error: %s\n",$ A5 S5 E# L) ? d
- http.errorToString(httpCode).c_str());. a- {- ]8 F3 g5 o, V0 V9 X
- }
, E3 D! r4 p5 q) E* k9 A - http.end();& k+ p, _# _1 L0 ?9 a" ? H' p
- return "";) W! h! x2 X/ T, a; f0 ?
- }" c% Y/ h# \$ [$ i0 ?, L
- }2 h3 Z% W% P# N2 c! t+ ]- Y
- void mainAction() {! a5 {. j8 M( L' G$ M0 j
- // 发送请求
- H& m* x9 ] s* s: A/ a. M5 D - doGet("http://google.cn");' `3 Z. S, D( {; B. I0 n, A2 y
- }7 h* s1 Y" n: W8 [7 t/ E3 c
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