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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)% g7 M4 j% A+ s: N$ U! p2 U) R- K1 h
- #include <ESP8266HTTPClient.h>1 A" b( z; w, b$ O5 ]0 P
- #include <ESP8266WiFi.h>6 g i4 q$ \( a2 w0 @2 G
- #include <ESP8266WiFiMulti.h>
% U5 K' h" s6 p# [0 { Y# E4 B1 ] - #include <ESP8266WebServer.h>
) O3 Q: E$ {) C& T" w2 ` - #include <arduino.h>
1 H8 t% M2 z+ H# U# [) r) K8 o, F - ESP8266WiFiMulti WiFiMulti;
% l6 n7 N" h* [+ p - ESP8266WebServer server(80);. {7 n( N; Z: R# E
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, C0 D* n$ |; h; H# G- {) B5 f
- ADC_MODE(ADC_VCC);4 l$ d3 `$ H* g+ m6 N- M
- void setup() { D( i* \; ~( k$ G* H
- Serial.begin(115200);
, f2 H5 \0 H, \ U. C+ E- f - Serial.print("\r\n\n");: l) K- D4 ]( ?+ r5 p- Z
- pinMode(2,OUTPUT);% o/ ]3 ^) l6 k: s4 @1 e7 w
- // WIFI
# ~8 [! r. g' }( m& M; ]+ z3 r - WiFi.mode(WIFI_STA);
! n2 @1 X$ }# O - WiFi.hostname("Sparkle");
' X0 Z; L$ E6 B# p* h, J# V3 l, v! ` - WiFiMulti.addAP("wifi ssid", "wifi password");
" n; D- b. U4 z2 n s4 i+ Y4 ~ - int tryNum = 15;
1 M% p& K+ V* U" Y' Q4 S - Serial.print("Connect WiFi");
# \7 ?5 Y, M( G+ W - while (WiFiMulti.run() != WL_CONNECTED) {
! s5 c6 O2 A9 {4 p# R3 K; d - digitalWrite(2,0);
. z4 ^7 L( z$ s' n - delay(200);
- M* ]! L8 V( I5 c; h - digitalWrite(2,1);% d1 N0 x$ h# Q* T% Y
- delay(300);
+ K: T) b( [8 A1 ~ - Serial.print(".");
/ E; b! n) m0 U0 g - tryNum--;
0 p2 {9 T+ a# ^: | - if (tryNum == 0) {* H1 K- s$ X2 Q1 b1 u0 J) A# C
- // 1min7 u6 ?% E- J# T; ^7 t
- // ESP.deepSleep(60e6);
3 M9 r& a3 l5 B% x - ESP.deepSleep(0);: O: g6 R7 I5 Z
- }
' m; z& k* U+ h8 A1 C% v - }
T- F1 p3 G1 V0 J% ? - Serial.print("\r\n");
% G7 r- q. f4 e, j: R1 Z. K* E - digitalWrite(2,1);
1 [; V% n* a, y3 d& l- \! K - Serial.print("IP address : ");3 Y1 X) R6 X, W: @& B! a( A
- Serial.println(WiFi.localIP());* p% B* R P( p( }3 f
- server.on("/", HTTP_GET, [](){
& u- \' b7 a! c2 C% N! a - server.sendHeader("Connection", "close");
4 `5 O0 X+ m2 l2 | - server.send(200, "text/html", serverIndex);, f- [$ F" G' i8 d! q
- });
: G% E: ]! s4 o( N3 | - server.on("/update", HTTP_POST, [](){
$ ?- w, m8 L" L3 l: u; ]& h# D - server.sendHeader("Connection", "close");0 q3 Z/ {- T( h7 o* E# f
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 x6 F2 z; b1 q4 H! A$ b L$ ]- b7 P - ESP.restart();9 _) W6 y% D6 W9 B
- },[](){
8 P/ x, z% A' e* x$ g6 U- V - HTTPUpload& upload = server.upload();7 R" g; D4 S1 G' l1 o
- if(upload.status == UPLOAD_FILE_START){6 {" T) i" t L7 m# t! r6 S
- Serial.setDebugOutput(true);
7 \6 `) {3 F. a) O - Serial.printf("Update: %s\n", upload.filename.c_str());8 n6 I o% |7 y& k V8 q9 h
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 ~ E1 g2 z. L* ^
- if(!Update.begin(maxSketchSpace)){ R* [$ u, A1 h% H' c8 l
- Update.printError(Serial);
: m) \0 N- C& d- r$ y - }! Q! \9 }1 L7 N |* J3 d* f
- } else if(upload.status == UPLOAD_FILE_WRITE){6 k6 }1 T9 d! F6 F; Y7 ~
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% b( b s' N$ y1 Q: r - Update.printError(Serial);
' C- f4 [! {2 F: M" o- u - }
4 ^3 `( d+ k, E8 l( A8 o- f - } else if(upload.status == UPLOAD_FILE_END){. U) |6 g0 g2 }3 o, P
- if(Update.end(true)){
4 W y7 \. }. z$ I. k8 K7 a - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 D1 M- U5 u4 @3 K1 V q
- } else {* J/ ^3 m7 o8 j
- Update.printError(Serial);
/ n, a7 G& Y; I" J( Q: a; M - }' _8 v) j% p+ X: C+ O
- Serial.setDebugOutput(false);
- T! @) e; @$ `8 \# n0 {+ ^ - }
5 H% X3 i u. N( t8 N# i - yield();
2 S$ N: a. V3 `' u" a4 e( G - });: v3 F& S2 v4 u, o# n1 }0 n9 N
- / U2 G3 T" L7 b# H' ?1 o
- digitalWrite(2,0);
% k8 s( W% ]" e' G. s; ?! l$ k! x4 T - mainAction();
: K# O# O% P2 n* a8 P" `) P - if (digitalRead(0)){
0 K6 H) c3 K7 \/ l D - ESP.deepSleep(0);
2 _- ^ v, k) p" u! Y7 W% J. ~ e - } else {2 E$ g' s/ ?3 Q3 q3 a
- server.begin();- ]! x- z6 r8 v; z' j
- }9 {: s# s T$ Q3 [
- }
8 z# t l5 D9 Z# r/ N5 I$ g/ j. S2 w h - void loop() {, I ?9 b! I a
- server.handleClient();* ?0 C; |/ T! M0 h
- delay(1);& ^3 _7 ~8 {* t# T4 k# s R
- }7 w; j% X! |+ A$ b& W; a k
- String doGet(String url){9 N* c( d8 C& A( {
- if ((WiFiMulti.run() == WL_CONNECTED)) {$ N0 F* n( C. e6 h
- HTTPClient http;
: B0 N% x& W8 F! x0 H - Serial.println("[HTTP] begin...");7 o0 o9 S' p3 A
- if (url.startsWith("https")) {
/ `. M! `$ V( N) Y6 ]+ p( k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! {" _' Z* O8 y# e7 O# B
- } else {
0 h, E; {5 z' l& n - http.begin(url);
- \8 i b8 P8 e) W7 K: W - }8 z" R: T* c: f y& B3 z
- Serial.println("[HTTP] GET...");1 H/ T* a/ c# ~9 y% g' T. X
- int httpCode = http.GET();
; p8 u0 U5 P, X! d - if (httpCode > 0) {
! `# b* `: C. g* h' P$ y/ Q - Serial.printf("[HTTP] code: %d\n", httpCode);% M7 c1 Y! t& P7 d
- if (httpCode == HTTP_CODE_OK) {* r d0 C& P! B7 O
- String payload = http.getString();( O0 L# w4 {! J" Q
- Serial.println(payload);9 F) {/ }+ w" B0 j& L! i
- Serial.print("\r\n");
* I/ p7 U3 ]4 K - return payload;5 g6 k& ^1 S$ J- g6 H9 ~% S
- }
& Q8 J& k. E. Y* C# ]6 Q - } else {
; W6 W/ e; S8 T" w+ q# C3 ^* W - Serial.printf("[HTTP] GET... failed, error: %s\n",
7 |9 k# b c: v: j" s - http.errorToString(httpCode).c_str());1 Q# E5 z# d& S$ h! k
- }
/ `1 D% s, E2 P - http.end();
3 s8 P( Q c: Q# \4 p* j9 {* n - return "";
1 E7 c2 |% ^5 J8 p1 U6 ~ - }
; J, i" I5 P+ T4 [6 P - }
: X8 T! u0 E7 a4 X+ S* K2 M, m - void mainAction() {
1 ^( b* p2 j% |" g' u% s - // 发送请求( h" K! K3 `( v! P$ D1 A9 h/ @4 @# I' E
- doGet("http://google.cn");" L4 @& i4 t7 P8 e$ q" a! {" a' g
- }1 i& @2 h3 K+ N( Y! q) r. u
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