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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)4 f' a1 g5 \* q
- #include <ESP8266HTTPClient.h>
# A5 k$ V9 _6 S5 o) x ^& G - #include <ESP8266WiFi.h>
9 U4 y! b8 H" N' S - #include <ESP8266WiFiMulti.h>
: m8 t) K, a" M0 A- { - #include <ESP8266WebServer.h>
4 p! D0 d) M. Q+ y" B) z; B7 Y - #include <arduino.h>
% K3 F( r9 [! |1 C5 P5 c - ESP8266WiFiMulti WiFiMulti;
& C- i* s! p/ c1 P: n/ N* r8 M5 @ - ESP8266WebServer server(80);7 ]3 W1 G& R' S
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- r1 k, X3 b) B" v( a* D
- ADC_MODE(ADC_VCC);
: L5 A2 Q1 m' M; R - void setup() {& o0 ?% _2 `* c4 F1 f, O
- Serial.begin(115200);
; G+ b6 c, Z* s: ]( |7 ` - Serial.print("\r\n\n");
% @& R' T" Y( \( ] - pinMode(2,OUTPUT);8 f W0 `# _: G1 ~8 q0 s
- // WIFI6 J9 J, A2 J, y- W2 F% y
- WiFi.mode(WIFI_STA);
$ ]/ |8 ]9 R0 ]; t% c! k - WiFi.hostname("Sparkle");" A, ~3 @/ X, |
- WiFiMulti.addAP("wifi ssid", "wifi password");5 N% ~1 a; B W. n9 ?5 z' Y
- int tryNum = 15;; L, t* ^2 o6 t$ A9 ^/ r2 x7 h
- Serial.print("Connect WiFi");* @1 h5 l5 k9 G; I% B. s* K1 H
- while (WiFiMulti.run() != WL_CONNECTED) {
' h% D8 p: {: z- \2 e1 @& Z - digitalWrite(2,0);
$ x U' M, G. o; A% @5 b+ N1 I0 d+ L! g - delay(200);
" h6 n3 V- L% C5 V" F W - digitalWrite(2,1);0 q7 m/ t0 M0 I
- delay(300);: |$ l6 x, x7 {) X# G, p1 w
- Serial.print(".");
) d o" b: m7 G f% @ - tryNum--;$ W! s" h/ G3 @' b& k! C. x7 B- `, F
- if (tryNum == 0) {
5 Q% I% s' k" w - // 1min: i' j& e0 i1 k+ g# |- A
- // ESP.deepSleep(60e6);! H7 m+ P0 q4 i- _5 I
- ESP.deepSleep(0);
' T: O& Q3 E6 T* [ - }
# D) b1 N" a7 j* v. a8 b - }1 p# J Q3 O7 z3 ^" D( ?3 @' e
- Serial.print("\r\n");
) T' C+ m4 r2 z. b: `* Q7 E" e x - digitalWrite(2,1);
6 O8 H( a' {& H - Serial.print("IP address : ");
, R: O2 |% }" U7 m, s. E9 a/ S* j) n - Serial.println(WiFi.localIP());
& u/ k1 P0 u2 J' T - server.on("/", HTTP_GET, [](){
9 d# X; C' [% q& W! \8 R - server.sendHeader("Connection", "close");3 ~7 b3 o* J# T5 {; a
- server.send(200, "text/html", serverIndex);
8 ?6 J" u- d! ^6 B% j% j - });
8 l$ [1 U$ P8 ^; T! v' B* [) x" D - server.on("/update", HTTP_POST, [](){
6 Z+ K/ o. Z1 f' Y+ \5 ?2 J - server.sendHeader("Connection", "close");" c: m& y' q1 E- F0 G X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. U) c7 ~2 s4 {1 c+ E - ESP.restart();+ w) P3 Y6 t: d& B% ^. h& `7 z
- },[](){1 ]( T* R2 b! L7 ~$ o5 b
- HTTPUpload& upload = server.upload();
/ x x9 Y( z+ F0 c- p* ]! \8 B7 c - if(upload.status == UPLOAD_FILE_START){# a) X+ ?! ?2 S9 D3 R; w
- Serial.setDebugOutput(true);
) {5 M+ ?4 n+ L3 C2 O3 f0 W2 J - Serial.printf("Update: %s\n", upload.filename.c_str());4 G' [5 U' E" h1 e8 K5 I# W# |1 B
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! R- A% l: t( c- B - if(!Update.begin(maxSketchSpace)){
! E5 V8 X i) m: } - Update.printError(Serial);3 U$ l6 S; c: ^) p5 T) d5 e
- }' B( w6 D- f5 G; a" Z! X' V
- } else if(upload.status == UPLOAD_FILE_WRITE){' M' W( j1 D/ {8 \: t/ V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 _8 d5 ?' _4 s - Update.printError(Serial);
W6 V# p3 W$ X/ q/ M6 P' B x - }
. [- I' W5 D' C# l; ^; Q% } - } else if(upload.status == UPLOAD_FILE_END){2 {9 r7 @) M: Q' I- L# M) q
- if(Update.end(true)){) ^" k" Z& N) s, _ m6 y2 N/ Y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' V" D8 |+ t6 {( i* t! x2 [7 s$ j
- } else {# Y: v! G- @& p+ T% ~1 D) C; z
- Update.printError(Serial);
) q" g( f+ H- e4 c9 G+ e; U8 q - }
: Y& G9 A6 F& _# C, ?3 F. h$ N, a5 N - Serial.setDebugOutput(false);
- N) f! A" n+ t - }5 z/ b& Q8 N6 @8 b' f/ d' T
- yield();2 A4 H C# z! P& b" c6 {" z: y
- });
- x1 Q& o- c f/ h$ Y - $ K" L/ B2 Z' ?
- digitalWrite(2,0);
9 E2 l) Q9 d6 u+ S7 D: q e) Y - mainAction();' ?7 D: q) }8 p! ?
- if (digitalRead(0)){9 m: _) V" \* s# n
- ESP.deepSleep(0);
, e( K; O) I2 g* ?0 I+ z& k$ Z8 Q3 O1 i - } else {* q% Y% J9 w) z$ j% ~
- server.begin();
" J1 X- Q2 y6 p - }
! t# Q4 c# L7 P# H - }
+ O. j! T- ~; Y0 [ - void loop() {
( G/ {9 i D9 |0 U2 h - server.handleClient();
. m# w5 C7 ^9 F7 g- C - delay(1);
' g6 W. H7 e: X; v - }
+ Z; O% \5 \/ f - String doGet(String url){! f) s9 u; l: J) C; G' M: X7 G
- if ((WiFiMulti.run() == WL_CONNECTED)) {, w0 Q# v3 D J: {6 v; Y6 y! _0 G, j% T
- HTTPClient http;
9 g! l) j, _" M& j - Serial.println("[HTTP] begin..."); U ?' d4 _5 q* R7 m7 b
- if (url.startsWith("https")) {
3 d- P+ @! t8 g4 L8 q4 C* a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, L0 {3 Q% B1 \ - } else {
3 }7 `% [" F6 \, |- F* f5 [# Y - http.begin(url);% p3 u' [% Z; A8 `" m" j) P. P
- }
% q2 D2 _5 R2 t; B5 u - Serial.println("[HTTP] GET...");
; r- u, E9 u2 y( L0 } - int httpCode = http.GET();
( i! \- D5 a8 m1 M$ A+ | - if (httpCode > 0) {
; R7 y4 j7 z6 V0 r: |9 f0 I8 F - Serial.printf("[HTTP] code: %d\n", httpCode);+ Y: N. f- R5 d* Z1 d3 D
- if (httpCode == HTTP_CODE_OK) {
* f. a k, \1 U6 i - String payload = http.getString();1 F4 _" j' J8 X$ y) k% L
- Serial.println(payload);' h( {. N0 x" }. j1 W
- Serial.print("\r\n");7 @7 Q2 i" H; y6 M& _- t
- return payload;3 |3 T$ `2 y$ ^' L+ J; @
- }5 C1 x0 x1 g4 J" E ?
- } else {4 I& f" \* b# ?) C" y. V. @
- Serial.printf("[HTTP] GET... failed, error: %s\n",# f U' Q/ Y. i$ O0 \7 K' X
- http.errorToString(httpCode).c_str());2 X3 T) H( i) z2 d6 {
- }1 V. w" q4 \# K6 R5 Y4 @
- http.end();
* t) v( O2 q) z$ w- t- I9 `( N% I - return "";
) b9 C& v" l/ P5 u9 D( \ - }
1 ~8 ] n0 n4 L& h% |9 C! R6 D - }
, Y# `8 `, c5 k, s" q& m - void mainAction() {+ P$ n. O4 Y9 q2 H l; |% f" `
- // 发送请求( x4 f7 K/ s1 _
- doGet("http://google.cn");+ K; ^) X; m' u& D
- }* G# v. x/ }% W' X# Q) |
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