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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)
6 @3 Y% V; A1 t4 }7 ]- #include <ESP8266HTTPClient.h>
0 t: |6 ~8 r1 I2 R' }, x. Q) w, ` - #include <ESP8266WiFi.h>3 Q8 ?' b+ e3 ]& p+ e; U. R) X
- #include <ESP8266WiFiMulti.h>/ N b6 c$ ~/ K* ]" d) D
- #include <ESP8266WebServer.h>
' B! k9 Q; ]2 ` - #include <arduino.h>8 V9 I: q! b) S% P9 t
- ESP8266WiFiMulti WiFiMulti;
; |+ ?0 r# H! F/ l, q, n' `0 ]+ P - ESP8266WebServer server(80);- D/ U: Q- e( [3 _* y: J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 D, N; L! B2 O3 ~
- ADC_MODE(ADC_VCC);
/ b! q5 k) `7 H% L, a* h - void setup() {
5 }- K5 R; S% Q# b( Z; q% U - Serial.begin(115200);
8 f+ n. u4 H# \- Y! a7 {% x - Serial.print("\r\n\n");
& h7 G$ w# Y8 R. O - pinMode(2,OUTPUT);
( z. M6 O) O. o" p& u - // WIFI
9 P4 J8 j9 Z1 e8 A ^ n/ z - WiFi.mode(WIFI_STA);
7 s( e" _; x' e+ m) E. A5 w - WiFi.hostname("Sparkle");
- j) }. ~- S& R" p# ^' w' j$ x- J - WiFiMulti.addAP("wifi ssid", "wifi password");% t3 X' [/ G. t! Y0 T* z8 a
- int tryNum = 15;
* H3 r* g6 I5 P8 u - Serial.print("Connect WiFi");: W0 k' {: m" J; A! l
- while (WiFiMulti.run() != WL_CONNECTED) {
; D- A: }0 W3 a - digitalWrite(2,0);5 r! Y. H& _' s! h4 g( w2 k2 q, X: s
- delay(200);
0 I. z( `& h2 g5 ]+ D - digitalWrite(2,1);
( v4 ]2 q" |& Y* ~( \ - delay(300);( R7 _: `! O6 z/ K( u& x o
- Serial.print(".");
5 ~# v' Y; L3 \, E - tryNum--;
* \+ j; h( ]2 C- ^' m* n0 C - if (tryNum == 0) {2 t+ {* p4 Z! x, O; K+ ]5 j* A; p! D
- // 1min
1 U, n$ E8 H4 _! o0 P/ L - // ESP.deepSleep(60e6);
. W. o, X3 X5 Z0 w - ESP.deepSleep(0);
2 p5 F$ H5 t! W$ _% w- }" U: F - }
# y& T; [# x0 y! G' R4 |, H2 M - }& j0 r- I% k- D+ W8 s7 v6 Z
- Serial.print("\r\n");
' ?( C! [# y, `0 S - digitalWrite(2,1);4 X( a" K& a4 q z
- Serial.print("IP address : ");7 w5 b: |0 e9 R: h/ Y' x {
- Serial.println(WiFi.localIP());2 a- Z# F# L( H" H2 A4 }) f
- server.on("/", HTTP_GET, [](){
7 p: B" K7 X% x! z - server.sendHeader("Connection", "close");# ]5 Z: c, l, U: V7 P
- server.send(200, "text/html", serverIndex);1 z5 C3 Y% B0 a- B3 H( W# g
- });4 ]& l' b- i3 i# Q( T+ h
- server.on("/update", HTTP_POST, [](){
# |+ o+ x+ u+ c; {. _3 X3 B - server.sendHeader("Connection", "close");
2 ?6 C/ p; v0 m! u, ^" B# g - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- g; y" s( J% L9 j* f! |8 F9 ~2 G
- ESP.restart();( u. e" S- P' n& P
- },[](){
) D# N; Y# Z0 H, H8 ? - HTTPUpload& upload = server.upload();% V+ s7 F" f" g7 h
- if(upload.status == UPLOAD_FILE_START){
/ K9 l7 y2 u& N9 w! A5 s1 e8 {# x - Serial.setDebugOutput(true);, T) y3 O3 n, v: w& }* l) N0 y9 `
- Serial.printf("Update: %s\n", upload.filename.c_str());+ U8 i4 C+ s$ g1 b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
G& _2 E4 V! o4 I - if(!Update.begin(maxSketchSpace)){
6 Y. x% n! [/ P0 Z - Update.printError(Serial);
, J5 j9 R. j& ~% ]- R1 L9 P - }
) Y6 J3 f- L0 r( S4 J6 O - } else if(upload.status == UPLOAD_FILE_WRITE){
! R' [ E- S- M" x0 [! b - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
- k* H6 l8 o" G, y) Q2 _7 ^ - Update.printError(Serial);1 x; | M9 W1 `( V1 @; E1 m
- }) d d9 c5 J d6 }5 E1 o. y3 f
- } else if(upload.status == UPLOAD_FILE_END){# J1 A7 `( N/ o$ M7 Q$ Q0 h5 @
- if(Update.end(true)){
9 U/ @, S( G- Q' W0 ^, r3 S - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! ~3 @+ S6 f1 q+ n( G - } else {
! j! a# p2 U2 s% U7 V: _ - Update.printError(Serial);" \: \1 i6 t. _6 n0 L0 Q
- }+ } j2 H$ [5 r) E r6 A5 }
- Serial.setDebugOutput(false);/ y/ L9 Y' p; g+ H1 u8 ?" W
- }
$ M4 T1 B; L1 B9 j5 V - yield();* ?: f# Y3 P/ P4 O& d
- });
( P) U- {3 p3 M0 ^; ]9 l - ; E* K, G, E$ g' @0 R7 k$ a, c
- digitalWrite(2,0);
8 Q; h# G- i, a7 C" |* }8 T) M - mainAction();6 a" A1 _- B1 [& K, u
- if (digitalRead(0)){0 q6 ~- ] ]0 \% a2 V) K
- ESP.deepSleep(0);
* c: Y5 ^ ]4 c# w$ A* R' f! y - } else {
$ \% G1 b F0 ~; W/ X/ y - server.begin();, D% D) `/ Q- E4 y$ N4 v
- }6 c* q% e/ N1 M6 g& L% o
- }0 f8 W, h* T. b) f
- void loop() {) |' j6 \% |& c7 p- r7 d# L; i
- server.handleClient();
5 P; r U; R+ G2 b$ ~) n" H - delay(1);- x$ t+ P0 ~1 M7 }
- }
0 n; N) n. @5 O5 Q4 Z V& s - String doGet(String url){. {8 r2 o9 A9 ^2 n$ S
- if ((WiFiMulti.run() == WL_CONNECTED)) {
% ]( j2 P& w% h$ {$ ?5 H# V0 |1 | - HTTPClient http;3 m t7 U8 `% P5 c+ ^- M
- Serial.println("[HTTP] begin...");
, D; S C, D$ V3 Y: l9 t x - if (url.startsWith("https")) {
5 Z3 @: Q% R2 l' C6 _* H - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 ^2 U& x! @& G" Z, U9 d - } else {
& T: L" q* u7 a" ^0 k' f* e- J - http.begin(url);
6 s6 N$ D* Q0 [# K* _1 C - }
: y2 u3 s. x" {/ b8 J2 v - Serial.println("[HTTP] GET...");
8 Q% Y( f, K) ?2 ] - int httpCode = http.GET();6 t- Y- j' u1 Q7 q( U4 N
- if (httpCode > 0) {0 Z& I' Z$ d& n8 u
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 k3 k3 e7 h5 B. ~( _! H - if (httpCode == HTTP_CODE_OK) {
/ C9 q/ F: f5 }7 a; X/ { - String payload = http.getString();* l; q2 [8 @8 ]+ F. s' L. v
- Serial.println(payload);' g: r# `! j; z: h, G1 v
- Serial.print("\r\n");
# [" Q E2 s$ o: h$ V6 F+ i; D - return payload;! A6 [6 ? k% {* y# S
- }
5 a+ G' j( J$ x1 E - } else {
5 t+ r' f9 S ]! p: t - Serial.printf("[HTTP] GET... failed, error: %s\n",+ ]7 a# C# c X0 l" t" w
- http.errorToString(httpCode).c_str());8 e, P3 M+ z; t! q7 ^
- }
( e$ | u M# b) Q" R - http.end();$ ~0 H+ [/ R0 G! z
- return "";1 G/ E$ A! ]" b3 `( H
- }% ?! f, i7 ]1 P8 B2 [4 p
- }
2 L; I* u- P: m1 ? - void mainAction() {
% F% D: R1 D( U$ F* d5 n - // 发送请求6 S8 m: O3 P( L! C: g
- doGet("http://google.cn");
; ^# e/ @" P/ t - }
; b" A! v+ m2 G6 o, V
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