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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)
# P, j% B- v* q1 O- #include <ESP8266HTTPClient.h>/ c+ u k0 B D
- #include <ESP8266WiFi.h>
1 v7 H9 f6 i! x- _+ F, a - #include <ESP8266WiFiMulti.h>1 d- [3 R" y. |: c5 ]# B. S% H# d$ E
- #include <ESP8266WebServer.h>
1 J3 ~5 r: ^0 ~ - #include <arduino.h>/ r" G- y- u7 M0 |5 U4 P
- ESP8266WiFiMulti WiFiMulti;$ s9 N/ Q. i8 {0 L9 \" d
- ESP8266WebServer server(80);, B b, y& _. N
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% T: E/ @/ d& x& D2 Q
- ADC_MODE(ADC_VCC);
5 u9 l4 {/ }8 X5 k2 ?3 R% N - void setup() {" G! [5 P2 D; K) e
- Serial.begin(115200);2 f* L ?, Q J" j
- Serial.print("\r\n\n");
0 g/ @! X: c( ~, b - pinMode(2,OUTPUT);
" W+ j( l6 |. q$ o5 { - // WIFI
* U ?9 ^# f. t \8 A- {( [ - WiFi.mode(WIFI_STA);$ ]- P9 g |6 d
- WiFi.hostname("Sparkle");" R+ _ o# l# f) U9 O* \! s
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 t! Q7 [* B+ E4 M - int tryNum = 15;
# S, m9 E0 E) A% {6 I - Serial.print("Connect WiFi");
/ g1 q' r0 q7 [: @ - while (WiFiMulti.run() != WL_CONNECTED) {
* V0 P, n( M/ P% S0 z - digitalWrite(2,0);
: S& }# }6 ~/ Y7 D - delay(200);
3 C/ n' N4 P; V7 b0 a - digitalWrite(2,1);7 ?: ]2 \+ E. S) F4 o/ z2 [
- delay(300);" w! F% o0 ]+ \
- Serial.print(".");
0 u6 [9 e9 J/ C9 S0 b: V/ T - tryNum--;
, p4 U J3 J& \( ^$ W) M+ K3 ` - if (tryNum == 0) {
, D$ o% P l, x - // 1min4 ~( p: w8 v' K; m
- // ESP.deepSleep(60e6);9 B# o" P; ]- D" E
- ESP.deepSleep(0);
8 A) Q+ ~( ^$ r/ Y - }
# g$ q/ f) E- U! ?: A - }, Z4 T1 y* m$ K: [1 v7 V! Z( K
- Serial.print("\r\n");
& k' c% H# v* O' D; S4 `* s/ X - digitalWrite(2,1);+ _$ R6 r& Z) P3 ?
- Serial.print("IP address : ");( K4 e; i. l9 T" J+ [* x
- Serial.println(WiFi.localIP());; A- w/ C6 U4 o3 l& N9 I& H/ v
- server.on("/", HTTP_GET, [](){! s4 t# o0 r8 o# s" ?
- server.sendHeader("Connection", "close");' B0 d& [# l- f: E- d, f( d Z$ e
- server.send(200, "text/html", serverIndex);* D ]7 P- w; f( Z9 e! P
- });
9 R/ G i: M5 \ ]; _ - server.on("/update", HTTP_POST, [](){0 m3 ^& ~; O! _+ s/ Q
- server.sendHeader("Connection", "close");) L+ A( I& V5 |( t/ G9 `5 o- E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
X. m+ T* e, Q - ESP.restart();/ g. F! n2 Y1 B6 n+ I! l. u
- },[](){
, H+ B4 |1 k6 J0 ^ h - HTTPUpload& upload = server.upload();1 n5 Q' R5 X, G5 z3 L8 A) V
- if(upload.status == UPLOAD_FILE_START){
' p1 e( o2 [, Y+ C$ z+ x - Serial.setDebugOutput(true);3 v% o& \/ g6 \2 Y/ X( T
- Serial.printf("Update: %s\n", upload.filename.c_str());
) Z4 \& v9 j' N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: A# e; Z. S! s3 R. W7 u4 x
- if(!Update.begin(maxSketchSpace)){
2 @/ N3 T" [$ E- F7 |0 i - Update.printError(Serial);: D4 e$ k1 x6 S4 ^
- }
2 c" @" a- t9 e( W0 A! S - } else if(upload.status == UPLOAD_FILE_WRITE){" Y- L# p+ [/ K* ]4 R- ]/ `! F& {
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 Q9 O! j. Z" D' J! w/ @7 X+ |
- Update.printError(Serial);/ e! Y/ w j* |+ q w. ~$ i) `
- }
/ c6 C6 e; ^: j - } else if(upload.status == UPLOAD_FILE_END){) u: E# H# @ l, O
- if(Update.end(true)){# R3 p G3 F; i! f; M9 ]0 t
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 i% F5 H2 B$ |- s. p
- } else {. A9 g& g7 D c
- Update.printError(Serial);
' J9 d% O7 U9 T! t" U - }
$ P0 N( y& \% D3 ^) v - Serial.setDebugOutput(false);2 h# c, p! x$ y ]" w
- }7 k# l2 H( w; a; a! T8 o# C7 s5 T$ x
- yield();- y# I1 k) [, g% I" P
- });4 F* c+ @1 j8 @
-
/ v$ W0 p1 S2 a" L" R) q, r) | D - digitalWrite(2,0);
$ a+ X; k9 o2 Q' V0 {6 Q+ d- C - mainAction();9 X! u' {0 a! k! M
- if (digitalRead(0)){4 l' [/ n( H( V" [; _
- ESP.deepSleep(0);
+ c! T% f0 n3 }5 v) D, b$ Y - } else {6 A- y- {. B& h
- server.begin();
( x7 O' i; I( A! @2 I* _ - }
0 _& t V7 g2 Q9 u0 f/ n - } g) z2 M0 _. h* ?( s
- void loop() {
) W/ U7 z: _4 x8 O7 E E% C, k - server.handleClient();) ?9 a% v+ @* d! m9 \2 O
- delay(1);! l/ V* n; k. |9 F& E' N
- }
0 I7 L& G* W- V( ?3 M, V - String doGet(String url){
) y1 e! L. q* N! l+ y4 M% y! S7 y - if ((WiFiMulti.run() == WL_CONNECTED)) {
; g. w; G6 O9 _% q- T9 C - HTTPClient http;
. O* m+ k, M; S; n0 i. X0 e - Serial.println("[HTTP] begin...");
* E: }' m8 F0 R- z2 Q K - if (url.startsWith("https")) {! q5 S* ~9 c. R2 s) W; {
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* k$ L( l) G1 B7 P' [1 M
- } else {
; @1 g. }8 a* p" N - http.begin(url);2 q* u, Q' J3 F( g, N) ^
- }
( j7 C* V8 K" ~* | - Serial.println("[HTTP] GET...");" ]3 \- F8 E! D3 C! J0 k m' ] b
- int httpCode = http.GET();! {+ ~# y" V% }3 I; ~( a2 r
- if (httpCode > 0) { ^4 |6 b$ S! l7 S- Y" ~+ G3 @3 o
- Serial.printf("[HTTP] code: %d\n", httpCode);% I0 f' [/ X. U* y& a, ?# y
- if (httpCode == HTTP_CODE_OK) {
i0 a7 a8 p6 Q5 V! P7 R+ R - String payload = http.getString();9 e- F2 a& o1 u" ~/ h
- Serial.println(payload);
( M/ D" o% y8 |6 G% {: j6 y) T. u6 \ - Serial.print("\r\n");" O/ ^7 [) _& K. x3 b
- return payload;
8 N7 m ?0 w3 h O+ I - }
3 y% W& [# X7 A' Q) F- l/ _( q5 ] - } else {
9 h$ F% h/ U7 q8 A1 } - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 K: n9 G x3 q( O3 Q - http.errorToString(httpCode).c_str());
: j, @. W) w7 Z- N+ x - }
L5 D" s3 G1 I+ ^. y - http.end();
8 y+ I3 L. z8 N! }! O7 F - return "";; ?, P' D. ]0 Z9 q
- }! t( ?4 ^/ P$ ?: O1 A% m
- } g4 w( c | p8 ~" }
- void mainAction() { E/ r& u, { `; w% p; E' T: _2 F
- // 发送请求% Y0 x0 @! s/ ~6 }# B" \
- doGet("http://google.cn");. R. v6 X8 y9 p+ d# U- v1 p7 F
- }4 X$ A9 j* Y$ Z9 v! J5 f5 ~
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