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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)
0 ~9 G/ Q5 N" d& R9 N- #include <ESP8266HTTPClient.h>
9 o, J( j6 o7 b/ M$ j: k/ x; k - #include <ESP8266WiFi.h>" o! k! P+ _; o e
- #include <ESP8266WiFiMulti.h>
# }% W) @0 o9 T: H - #include <ESP8266WebServer.h>' M! ~* r: z7 A
- #include <arduino.h>" s% e- ?8 k7 S" k5 E! M* [
- ESP8266WiFiMulti WiFiMulti;' Q' Z/ N, G9 Q5 |
- ESP8266WebServer server(80);5 b9 }, J, ?& C3 Q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ D3 D+ z+ ]* E/ p& f" ] - ADC_MODE(ADC_VCC);6 h, ` ?5 b0 R \( c
- void setup() {; [, U, c) I" I! U" Y
- Serial.begin(115200);* h8 H0 D$ H' j5 c- {0 j
- Serial.print("\r\n\n");
9 R9 {9 D- ^0 \% x% a, n2 E. t2 F* m" x/ x - pinMode(2,OUTPUT);) G4 ?7 a1 ^1 l. [' e" V) n9 s, b
- // WIFI
1 o, d, G$ U: m. }- W$ g - WiFi.mode(WIFI_STA);
" x0 O! q& C5 C7 h. w) h - WiFi.hostname("Sparkle");
" X, w# q# g, h5 @6 m P, D8 B - WiFiMulti.addAP("wifi ssid", "wifi password");0 H6 v" e* W5 o4 }* _2 m
- int tryNum = 15;4 r8 @3 N( F8 M1 A) x8 s q
- Serial.print("Connect WiFi");& w- V) F b0 `6 N2 j2 M
- while (WiFiMulti.run() != WL_CONNECTED) {
3 R! d& h" O$ }" ~' B/ ~ - digitalWrite(2,0);6 W' M, j- F) ~
- delay(200);( O5 r& _; A8 e4 Y/ t1 i
- digitalWrite(2,1);. {2 ?! ]7 `5 N6 D: C; n8 ~! K
- delay(300);0 u% n- n/ ?, B
- Serial.print(".");/ ^# i. V- V- ~2 r6 Q
- tryNum--;+ \: ]9 o E- s& R; k. D- D& J: I
- if (tryNum == 0) {# r6 z/ ~$ T9 n9 ^" O
- // 1min# E# p& b7 y2 O
- // ESP.deepSleep(60e6);
& L. c3 x Q8 p8 ~* Y2 p - ESP.deepSleep(0);; R! P. p4 Z( M w1 J
- }
0 M+ J- E( v |2 x* B( j2 [ - }
, U: U, c7 n; M' b( Y& w - Serial.print("\r\n");
, P0 A" u1 e, C" u+ z! l4 ^ - digitalWrite(2,1);
9 O! _+ c$ w: K6 c' Q3 s - Serial.print("IP address : ");
1 W: h8 ? t2 z, L/ o( q- C" f" Z - Serial.println(WiFi.localIP());4 ~" r" A- m Q
- server.on("/", HTTP_GET, [](){
: z" c$ h8 D: k- p) o, R* Z - server.sendHeader("Connection", "close"); ]4 P' X3 V/ n6 ~
- server.send(200, "text/html", serverIndex);: L+ H; t9 k4 A- J9 `
- });
$ l/ H. P1 D% H ?; e: g+ Z- b - server.on("/update", HTTP_POST, [](){7 n& q1 a- S6 K5 |* S/ `- B7 ] e
- server.sendHeader("Connection", "close");
# X7 [( g5 L) a6 f - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 _( }7 f& `. r8 p6 }0 d1 ~
- ESP.restart();
, e/ K, d; v- \: C, L5 Y - },[](){
6 @! } V8 H3 _/ n6 } - HTTPUpload& upload = server.upload();$ c; b: I& k1 y" @2 e
- if(upload.status == UPLOAD_FILE_START){
# \2 L" u8 n5 R2 C) m - Serial.setDebugOutput(true);* U- |, M0 T) H# z8 l
- Serial.printf("Update: %s\n", upload.filename.c_str());& e# e- T, k; H. w- \5 s& E
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! h# Z) L* j- h - if(!Update.begin(maxSketchSpace)){
+ X9 P- d& ]$ M% e! V - Update.printError(Serial);
9 J' T* c. F0 _ - }& j5 H- s* M/ m4 K) `
- } else if(upload.status == UPLOAD_FILE_WRITE){5 G) L1 u4 ]* ^7 F' A& c
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* g4 g2 Q2 {1 |7 B/ q& m% N% | - Update.printError(Serial);& w* Q6 V1 y0 Z- N/ R
- }" `+ a5 U5 P! [) J
- } else if(upload.status == UPLOAD_FILE_END){
4 J9 D T" a$ X3 X. }8 Y2 E# I! Y - if(Update.end(true)){
) l9 r5 C# G. C- G5 a3 z& Q0 J - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( P, W, v2 Z' m' [! r, A3 h
- } else {$ N3 y5 T" M3 U2 d. D ?
- Update.printError(Serial);% c( c# j0 r5 f/ {
- }
" }6 ~: A: O% P0 _ - Serial.setDebugOutput(false);
5 L# Y" h1 n* M" {( O# z - }
. _9 S+ ^, f9 J' g2 T0 i1 L" h& { - yield();8 j, |; s# o$ q4 `; d
- });
- C/ w2 d1 N! \/ h% {+ v2 U2 i - 8 y0 f: w4 g ?% D+ O
- digitalWrite(2,0);
* t8 H, {6 K! M$ ^! w - mainAction();
; y# c) h, K( @ j4 x - if (digitalRead(0)){- ^! e5 A0 |1 A x8 k
- ESP.deepSleep(0);
% {2 [ t$ q5 \# \2 P - } else {
9 S8 V6 O+ j6 ?, \6 }% k) G2 f - server.begin();
5 ]: Y2 D6 I) C) r! | - }$ ~, e8 ]# s& ]; S w8 p1 ~7 X- R) e2 V
- }
/ s+ c) \; x' t; a3 P - void loop() {8 \; I v8 Y" o$ m' {3 b" k( C8 B4 C
- server.handleClient();
9 c2 L3 c' v$ ^# {+ z* u; S# E - delay(1);; Z7 S5 Y. K% K8 c% \0 Z; |* w7 ]
- }% ]- T: Q% _" s. Z) X
- String doGet(String url){0 |7 A: R7 b- `# A7 |
- if ((WiFiMulti.run() == WL_CONNECTED)) {, ^: i) i& B- Y# ~* G
- HTTPClient http;/ ~* }1 h9 T m' j
- Serial.println("[HTTP] begin...");
& }+ q0 l4 h- b - if (url.startsWith("https")) {8 R( M' K+ J H4 Y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ R+ x$ e. i4 S/ D# I0 C* W. C - } else {
( Q9 @8 r+ }0 c* H: g - http.begin(url);! F. s5 {& {4 f* I- f/ f
- }
1 ^ T1 N. t7 e) R) r - Serial.println("[HTTP] GET...");/ L$ C0 p" r1 M5 h0 Y7 j5 j* R
- int httpCode = http.GET();9 W# A# w& i0 v) |
- if (httpCode > 0) {4 j3 V" l* p0 }) E+ {% D! N. R
- Serial.printf("[HTTP] code: %d\n", httpCode);: h, @' M! F6 g* H/ A! f) o
- if (httpCode == HTTP_CODE_OK) {! a: P$ T+ a/ \& S$ g
- String payload = http.getString();
& {/ i4 d2 B# U0 H" x - Serial.println(payload);! D: \4 v* @9 { B) f
- Serial.print("\r\n");2 Y: q- S: Y; F6 V# l& V
- return payload;
) [( c8 t* F* I: d/ H+ x1 J- o - }
* B: e' B5 M% Q: v- U' \1 f - } else {8 {1 q6 Z3 j7 N. A1 e _7 _! x
- Serial.printf("[HTTP] GET... failed, error: %s\n",
% W# d0 L7 [7 v! D) }# E0 { - http.errorToString(httpCode).c_str());
7 }5 O. `. `8 a* M& ]) x/ T - }
7 p1 O H& R# k" p0 b1 s) f - http.end();" q3 i0 ~& T1 {) M+ E2 B
- return "";
3 q% ~/ U7 F& d3 }+ [/ b) H& |' r - }6 O( ?0 X0 v6 U9 o
- }
8 r/ A ]$ f2 q8 k2 |0 @ - void mainAction() {" u, y2 k* a* i$ z0 \1 G
- // 发送请求
8 {5 C- R9 }2 O: s, ` - doGet("http://google.cn");4 t5 Y M8 u8 _/ P3 b
- }
9 d3 X: l: f1 J, l2 H( U: j: C- ]
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