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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)
/ q1 G5 g: L. G/ m- #include <ESP8266HTTPClient.h> e# G. x* V) i( P6 \
- #include <ESP8266WiFi.h>- x/ v& E1 O! L& F
- #include <ESP8266WiFiMulti.h># ~) Y$ w, e* B _
- #include <ESP8266WebServer.h>
. N4 J9 P1 c( i - #include <arduino.h>6 h# Y0 R& \! m' G5 c" A
- ESP8266WiFiMulti WiFiMulti;0 w4 C+ B& B+ |. \9 R
- ESP8266WebServer server(80);
' ?7 s! S2 t. ?4 a1 ?# x$ O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, m+ Q7 b0 V6 j* u$ t# m - ADC_MODE(ADC_VCC);
1 Z( W0 q- w' n+ n8 R - void setup() {
[9 W8 x, V* S4 U" N - Serial.begin(115200);+ k9 ] _ T0 E4 }- i0 x
- Serial.print("\r\n\n");( x) }! c& a# Z) w! \+ K* \# N" V) a% T
- pinMode(2,OUTPUT);' a9 j9 Z6 K' s
- // WIFI+ }, Q# e) t5 [, {
- WiFi.mode(WIFI_STA);( t) ^7 c, M; Q7 Y2 x
- WiFi.hostname("Sparkle");
0 {3 N$ T; I: v6 ^. x$ Q - WiFiMulti.addAP("wifi ssid", "wifi password");' N. h K% i9 V+ \, j5 e1 B
- int tryNum = 15;8 }) \+ o% {7 y0 }9 S8 P
- Serial.print("Connect WiFi");, V' W2 N: o: G8 p
- while (WiFiMulti.run() != WL_CONNECTED) {
S. q: q. A* b- F6 q1 v: i - digitalWrite(2,0);
& J1 L( K. |+ R - delay(200);) V; z) p/ W* `" {) w
- digitalWrite(2,1);1 I% r/ F4 i0 }- C: @5 M2 L
- delay(300);
/ T# A& l9 s, h+ O0 c! M - Serial.print(".");6 C$ S% F+ v% ~
- tryNum--;
/ b( H+ k% o& n: x4 d - if (tryNum == 0) {
: J9 x4 W% O w9 P7 [% m - // 1min
) @9 n3 D ]! T4 Y t/ ?! Q1 [ - // ESP.deepSleep(60e6);
& X* T! ]3 D% [/ o) H - ESP.deepSleep(0);
4 ^$ @+ v# Z7 B. N' M7 s! X - }; M" a# v6 R; p' q. h6 Q: s. K3 C
- }
: @5 g6 J, t+ l3 ` - Serial.print("\r\n");
+ y9 s6 O& s5 K' `' Q - digitalWrite(2,1);0 P- X0 I$ g9 K+ [
- Serial.print("IP address : ");
+ a" u$ k3 Z2 F5 |7 {! n - Serial.println(WiFi.localIP());5 Z6 N1 K( \( g) |; P
- server.on("/", HTTP_GET, [](){
0 Y8 A- `: _: C) j8 K - server.sendHeader("Connection", "close");
( m; C7 p" z" C7 e - server.send(200, "text/html", serverIndex);
+ F( w( U7 B( F c# K5 b' T1 B - });
6 L% Z* Q8 t1 A% O3 F0 x" n - server.on("/update", HTTP_POST, [](){$ D! p& y; i8 D
- server.sendHeader("Connection", "close");' q) u0 [0 t: \4 D' z
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% R4 M+ E; n S4 C8 N8 y. N - ESP.restart();$ t l: Y* f$ d2 M9 U5 ~ m
- },[](){ g5 p; P9 [7 L. y9 Z, W
- HTTPUpload& upload = server.upload();
# x% _( z: `" A F- q" W( w - if(upload.status == UPLOAD_FILE_START){
4 d3 F1 J7 `$ ?; m1 A/ U - Serial.setDebugOutput(true);: H2 h/ q5 {$ v1 O1 L
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 I) O1 Q# F% Q! N3 b$ t4 k4 ~* H - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ N) Z; A- a( o! a# {2 B
- if(!Update.begin(maxSketchSpace)){
) R$ m# s4 ^+ ?7 V5 U% I! E4 x - Update.printError(Serial);' W8 t8 v1 c. l+ c
- }- z: u# Q, F3 N/ ~
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 s& j( t, I* j Q+ p& N: l; J4 x - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# Z" y$ u% `/ D- [; u3 X+ n - Update.printError(Serial);
1 J4 ^$ N6 W/ x N3 f8 a7 [" f$ P- Z1 b - }
3 k4 B1 @+ Y+ B* k - } else if(upload.status == UPLOAD_FILE_END){9 S" M! s3 I3 r) k- [' o }
- if(Update.end(true)){# J; z% Z/ i2 p# v' Z7 Y P' W
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) V2 p8 P* R# v0 i& n6 T5 Q
- } else {9 ^; I5 D1 }: Z
- Update.printError(Serial);+ k4 S+ z; a) |: _/ ~. [7 r# b
- }
6 F% T! T/ j) o0 c' O" x" l' N! a - Serial.setDebugOutput(false);& k$ V) E8 d. v K: J8 p2 \. i; a
- }
. d7 M% |9 n2 o9 E! n# { - yield();% X- e0 N- B2 M0 Z8 k9 o+ t8 c; Z- j4 B
- });
4 Z. Q, q1 H* I& u -
7 a2 @+ f4 a9 s4 F9 P, S* @8 u" e+ S - digitalWrite(2,0);
- _) H. m5 G' E& t, } - mainAction();7 a; p% \6 G! X" u4 Q' A* z
- if (digitalRead(0)){9 M3 t: y; B- b T, o( D
- ESP.deepSleep(0);4 Q& g9 b) C/ l( Q% }2 L; q
- } else {1 ?8 z. G _! D6 j
- server.begin();
4 h) m; A2 r2 k - }5 \, `& V* i+ c3 |+ u" v% C
- }+ }+ m6 g+ c! `, Z
- void loop() {
, t) H0 }) X' ^; @0 w& G1 q - server.handleClient();( p6 _* L; G% ~
- delay(1);
J" y6 M h" L' @ X# u0 l - }# R3 Z) z3 F- Z1 f) n5 l) I' M6 V
- String doGet(String url){" b2 p, j: n$ p% A, x+ O5 ~$ U
- if ((WiFiMulti.run() == WL_CONNECTED)) {: u# t3 |: m2 v5 n
- HTTPClient http;
" s, ^! _3 t% c+ S/ J" r - Serial.println("[HTTP] begin...");
, _) E$ m$ D5 X4 x: q - if (url.startsWith("https")) {
' [. D3 D2 M$ J- C - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% H- O4 J6 v" {; E3 V3 {; `9 a7 ^
- } else {
+ r1 p3 A- J E2 { Y - http.begin(url);
& y# Q; g3 N" O" I( k, j0 T - }
$ D8 y5 |: z+ @ - Serial.println("[HTTP] GET...");
$ c8 A0 B7 }9 I5 L4 ^: y: @ - int httpCode = http.GET();
# g" h' G- @+ o# D- G3 W - if (httpCode > 0) {
: D- y. Z8 c- L; W2 V - Serial.printf("[HTTP] code: %d\n", httpCode);3 O! P$ Y5 P0 f$ f
- if (httpCode == HTTP_CODE_OK) {
# y4 i& K' [2 F1 R# h - String payload = http.getString();
( z& B+ O" C) d, G; G - Serial.println(payload);) |7 ] C0 S" G. ~2 J
- Serial.print("\r\n");, d$ {% J& Z3 i2 X/ N
- return payload;
9 S& e/ z5 ^9 Y, i) ^5 H% F4 c# n - }) J6 A! c( z. {/ e. v! ~
- } else {
4 t! R: f, d$ M6 N0 F D* c2 @. q3 z - Serial.printf("[HTTP] GET... failed, error: %s\n",% g6 U# s3 C5 X7 m, Q- a4 }" ?; l0 E
- http.errorToString(httpCode).c_str());
$ n$ t) _5 B" L5 _& q+ ], M - }
% |' Z" c7 i% s' P - http.end();" t9 W- o1 R) ^4 c$ N, \
- return "";
6 i# Y. ~8 y- E) e4 }9 o3 q4 o - }- z/ F: o$ j1 ~, E
- }3 u1 ?4 i" J$ U
- void mainAction() { Y8 H( g; p7 X! o( W! M/ X: ~
- // 发送请求+ o" i7 ^! ~! z; q
- doGet("http://google.cn");
/ |% ]5 j) D; s$ D7 T - }
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