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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)
5 M+ ? W4 s2 D, r7 @: l3 N! t: c- #include <ESP8266HTTPClient.h>
9 c0 U. q+ [0 v" a - #include <ESP8266WiFi.h>& Z! _2 m( ]1 Z, n6 Z, I( | T! @
- #include <ESP8266WiFiMulti.h>* V+ I) T& g8 |" r
- #include <ESP8266WebServer.h>
4 g& D3 O" Q. j( E7 U8 c - #include <arduino.h>5 [8 o1 {8 B% e5 N
- ESP8266WiFiMulti WiFiMulti;
, C: U6 x4 I4 y* w. w - ESP8266WebServer server(80);
+ s5 C5 U3 y. m a& y - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 X" |# X! _3 \ - ADC_MODE(ADC_VCC);" P6 ]9 D8 ]2 d* f" p6 l
- void setup() {
0 U+ \( p- o" H. [( G2 A - Serial.begin(115200);
; s$ K) ~# I- j* P8 a/ K7 a - Serial.print("\r\n\n");& g" r+ k5 v4 P* v. N }
- pinMode(2,OUTPUT);$ g1 i; T- ?$ s- w
- // WIFI5 E3 U4 E# ^0 y- P& J: h+ l
- WiFi.mode(WIFI_STA);
, M$ P( K5 O) k4 g) L0 F - WiFi.hostname("Sparkle");7 _" _( G# ~1 A
- WiFiMulti.addAP("wifi ssid", "wifi password");; A2 B0 x( B6 X& U1 w) c5 h
- int tryNum = 15;; {5 _7 ?/ |9 `# [: W% }* q0 A" x; A
- Serial.print("Connect WiFi");
# [: R1 D4 S7 j* w$ i - while (WiFiMulti.run() != WL_CONNECTED) {$ ]9 n0 I2 O: q
- digitalWrite(2,0);& R8 ~2 v& R4 R# i/ H _
- delay(200);7 `3 u% C; T5 F( h2 V: b4 Q
- digitalWrite(2,1);* @! d) W, f+ G
- delay(300);
5 F0 ^$ r2 B2 y4 Q* u - Serial.print(".");) n/ b- R; I, s3 @$ z3 x2 ?# e
- tryNum--;: Y/ z: `: w; H& ^3 p
- if (tryNum == 0) {8 `; k5 s2 ^4 U- A$ w! _+ P
- // 1min
( Q( U9 E X" k& C3 q# [ - // ESP.deepSleep(60e6);: M& B+ h1 z# Z' F* g/ j" f
- ESP.deepSleep(0);
% P; u2 q/ w/ G4 B3 x. F- d7 G0 Q# v - }
( [: Y* G. ^+ `, b5 v - }% l* Y, X" B3 o7 T
- Serial.print("\r\n"); O: c7 |' g/ w3 _) j
- digitalWrite(2,1);
$ _7 @& R0 K5 Y* m- S+ M+ F1 { - Serial.print("IP address : ");" U; j! h: ~3 G9 {* [8 `
- Serial.println(WiFi.localIP());: |& a( n$ h l' ]$ p, o
- server.on("/", HTTP_GET, [](){- f a( `& J( w3 i! B' t& y) i
- server.sendHeader("Connection", "close");
0 |; E- Y+ `$ _4 [9 H - server.send(200, "text/html", serverIndex);$ w6 [% }% o0 |
- });: K3 T- o q5 g: v) h- y' G. ?
- server.on("/update", HTTP_POST, [](){/ ?" W9 {+ {: g J c
- server.sendHeader("Connection", "close");# h! M# |) E, y6 K: W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! s0 x5 [3 ~+ {
- ESP.restart();3 w; }1 l5 }% I# M4 ]
- },[](){. L& A R" W. X2 B# G
- HTTPUpload& upload = server.upload();
& h/ H% k O t( P. h' I- p* {* ] - if(upload.status == UPLOAD_FILE_START){% b$ Q+ z6 a% [; H" d" w; K c9 A
- Serial.setDebugOutput(true);. l' {2 {8 n {$ D6 X
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 C4 H: P+ c( o4 I - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 M/ L4 j, E: Q7 B
- if(!Update.begin(maxSketchSpace)){
- X5 b0 |8 D& B$ d, _2 R5 u - Update.printError(Serial);6 s' o( }7 }" M1 g. N9 ^3 n& b3 Y
- }
# `6 M* r7 L* c7 Q2 J - } else if(upload.status == UPLOAD_FILE_WRITE){
& M D% u0 H, ? - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 C( s, d- `" q# d/ Y1 h3 g
- Update.printError(Serial);
0 k& o( V& l; R3 G - }
. D" ]# i6 m0 p3 X2 R' d - } else if(upload.status == UPLOAD_FILE_END){# f4 M" D4 b `5 l8 O1 d/ o1 A$ }
- if(Update.end(true)){
) F$ U2 D: r* c! P: `% Q3 A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);; J% g7 A9 T% N' }
- } else {
* s. z3 J# x" | - Update.printError(Serial);
# W e0 {: T6 t - }
( k; a( g1 D6 H/ I3 ]" z' I" l* U - Serial.setDebugOutput(false);
^. L2 j8 z) O5 s! j, |+ u* z9 W5 } - }* u$ b c q( d* A4 t
- yield();
% `; e4 ]. v s& c0 G - });
7 L7 b3 R q1 B - 3 h. M0 c! F: P
- digitalWrite(2,0);: T; \" Y$ `) h% X1 J, z
- mainAction();
$ R5 J4 F* x3 M- r* H - if (digitalRead(0)){& o, `* C. C( _, t
- ESP.deepSleep(0);' U2 W! }6 T" X* H4 H8 \7 i
- } else {" x+ J9 p+ w) B) z4 G
- server.begin();7 |/ m! S+ P" }8 W8 q) I# S
- }
9 ?2 M3 G/ \* T2 ]% t2 u, I- o - }& R0 M' J* Q; v7 N
- void loop() {
# j4 O& A1 Z( c! t& P% T - server.handleClient(); l4 ^5 Z# x8 f
- delay(1);! W, F* T' J' z- x$ C
- }
, G7 ^5 B% ?* B9 N& l4 J" R. h% X: v - String doGet(String url){
0 @6 M- j$ x( ]5 ~! I* z - if ((WiFiMulti.run() == WL_CONNECTED)) {9 B5 i; S/ H* v* t% W+ E
- HTTPClient http;
. Y) A% A# C1 |4 s& F& y5 i - Serial.println("[HTTP] begin...");
! ^# z5 k3 P5 L+ j; X - if (url.startsWith("https")) {$ O$ @/ O: r$ U# O, f
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: E A5 {( U1 F: s: o3 _
- } else {- X( f/ I7 c8 e2 Z
- http.begin(url);
+ Q8 l) x3 Y/ K" r - }2 J$ Y( y+ U( o
- Serial.println("[HTTP] GET...");
4 J9 b* l( p# i, S& L - int httpCode = http.GET();. X4 |# @) J2 b! O
- if (httpCode > 0) {
8 R0 G* h5 `# p8 z - Serial.printf("[HTTP] code: %d\n", httpCode);
K1 i3 i7 f# a4 d* j: U9 { - if (httpCode == HTTP_CODE_OK) {* V% e! t, E3 g( [( w+ \
- String payload = http.getString();
8 E7 \( v' l: J - Serial.println(payload);
" r- ~4 _& |+ G: @& v - Serial.print("\r\n");& u' d$ g6 N. p0 o0 W6 h) f
- return payload;
0 M& O3 }" f( a% U - }7 q$ ^9 S. A5 W( w* t* i5 E" Y
- } else {
7 z8 h8 h1 a2 G7 Y$ \ - Serial.printf("[HTTP] GET... failed, error: %s\n",, G5 y/ z' H" S' J$ s: C: n8 v& ]9 y
- http.errorToString(httpCode).c_str());$ D, k; Z, v8 a/ \0 [/ L
- }+ v3 j) N* Y) _$ [& S1 W( u0 E# j
- http.end();2 H; \6 j# p7 h8 P) i1 L
- return "";
" W( Q# t) u3 H! \( } g! u - }0 N# W# B7 A! @! f; U$ V$ ~) {
- }
1 f/ j! B" t' ^% T - void mainAction() {
& x7 s! F3 E/ c- b) c+ b - // 发送请求; o- h5 N) v3 W; n
- doGet("http://google.cn");8 j' R( I) a. {1 K1 |& e# }* e% P
- }! R, L9 R6 n7 }+ ~" a2 i2 Z) U
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