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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)- j- p; [4 w3 t. Q3 u) |9 R
- #include <ESP8266HTTPClient.h>
R7 I& @6 C r" o& ^ - #include <ESP8266WiFi.h>
( }2 {* b* F7 l0 I" L - #include <ESP8266WiFiMulti.h>
$ i _$ R2 `' k0 _ - #include <ESP8266WebServer.h>4 V: D/ i& T* P+ e+ d
- #include <arduino.h>
* b3 Y2 \4 J) O- T& R9 T# W' z, d - ESP8266WiFiMulti WiFiMulti;# R8 S! C2 r0 }! P: F/ k
- ESP8266WebServer server(80);1 i6 R- z3 T+ A2 N- R5 x/ _
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- D; \3 O* Q- T+ S4 l% _, R* R
- ADC_MODE(ADC_VCC);
, z3 p% x% Y- q/ f s& C - void setup() {
& f2 ]* o3 O: P! i7 ^ - Serial.begin(115200);
* `3 C8 K$ t2 F% t4 F - Serial.print("\r\n\n");
! B( K- `8 K7 o, O8 m" C - pinMode(2,OUTPUT);3 d3 R6 Y* A4 d- C5 g z" G
- // WIFI0 U; U0 o2 J( [! @
- WiFi.mode(WIFI_STA);
: g3 Y/ M* U0 i - WiFi.hostname("Sparkle");! ^. O; [' Z# f0 a3 B
- WiFiMulti.addAP("wifi ssid", "wifi password");
- ~7 J5 x" ]$ @1 g, \7 s# a/ @ - int tryNum = 15;$ G, j N) y/ f- s
- Serial.print("Connect WiFi");! Q% [: \2 D2 Y+ ? V' i7 w
- while (WiFiMulti.run() != WL_CONNECTED) {
, E8 O0 n. x( D) j& h! a - digitalWrite(2,0);
0 Z+ F& B% `3 o; S: a - delay(200);
6 K$ I% j3 l, V m/ F - digitalWrite(2,1);
9 C) F; o% c& @) D5 ?7 U: Y% ^3 e - delay(300);
7 Y( Q1 o( |$ V! J. F - Serial.print(".");& y& h8 |( a7 S# u
- tryNum--;
K: w) x. V( x* C1 ?$ [+ t3 Z) _ - if (tryNum == 0) {; {$ D; a) q0 U9 I+ x% q
- // 1min# k1 N8 x% d0 E! I, [
- // ESP.deepSleep(60e6);
3 T5 t4 `0 \% |4 _% a - ESP.deepSleep(0);3 s7 _+ E( s6 I9 r1 r! f' y
- }
9 ?4 s0 r7 | G3 _; D - }. l2 R P* g2 B! J5 ]4 ?2 |
- Serial.print("\r\n");) O3 P6 p5 o4 O, u: D
- digitalWrite(2,1);
" y% E1 F1 p4 w. J - Serial.print("IP address : ");
6 j$ ^% v! W. l4 h; S3 q ] - Serial.println(WiFi.localIP());
9 g5 {2 U; M% T5 x% j& R- o - server.on("/", HTTP_GET, [](){' _) q4 K* N& U8 v+ U! X# K" \
- server.sendHeader("Connection", "close");
' p4 m$ t4 ^* L. x" ~8 a - server.send(200, "text/html", serverIndex);
4 H' q! Q4 a, h3 W& x1 k( Y3 \ - });4 ?& C2 b0 z4 {9 f
- server.on("/update", HTTP_POST, [](){
. z5 b3 U1 |. u, k& J5 E - server.sendHeader("Connection", "close");& s( K: o4 A; i/ U: {% W' w* S
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- x6 O$ y | o. k/ f- m
- ESP.restart();
0 k/ G% F! |( j B# i, |8 Z - },[](){+ L/ Z% S( M1 X! f% J
- HTTPUpload& upload = server.upload();7 G% I7 \9 ]9 c0 C) l6 Y) b
- if(upload.status == UPLOAD_FILE_START){% ]& _7 ?: h V; I
- Serial.setDebugOutput(true);- A4 L K7 R3 g. Q
- Serial.printf("Update: %s\n", upload.filename.c_str());# g0 R8 r: N' p, I
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 X5 U1 I7 _% ?3 {1 X- l
- if(!Update.begin(maxSketchSpace)){* U% R" I7 C" z: U
- Update.printError(Serial);$ @* D8 R) m& X
- }
+ w8 ]' Z' O- H1 j* W5 y5 j3 F& |# G - } else if(upload.status == UPLOAD_FILE_WRITE){+ ?, [; {: i/ u2 U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( u7 A# S& s; z4 Y9 W+ `3 K - Update.printError(Serial);
+ N. s; F7 x, Z5 Q. | - }9 q* u N2 a& L6 I: Z5 v* t" R" z
- } else if(upload.status == UPLOAD_FILE_END){/ T* L3 n, n1 V" \
- if(Update.end(true)){. z5 O/ X7 N; [6 z- ?, u J. h1 C
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- U4 r& e! m+ ^& T, F
- } else {
0 a( D5 u7 l' ] - Update.printError(Serial);1 s# W0 x; w& h3 H5 N
- }
1 I3 w+ {# A+ k5 c" G( T5 X/ G - Serial.setDebugOutput(false);2 `5 j$ y1 Y8 P- H- j% R
- }
( r) n# \* P A ~* c, r1 ]; F; w) w - yield();
0 m5 l2 @; J. H& o- t - });
0 J( X, r8 s9 J: _ -
. x& m. Q1 L. q, B# L; ]3 |5 C - digitalWrite(2,0);, A d3 D) k1 M8 t- x* Y
- mainAction();
+ V, A! Q3 v- M - if (digitalRead(0)){
$ N# p# L- W$ M$ B9 z - ESP.deepSleep(0);
. q0 D' g7 ^7 E - } else {6 V9 }0 B9 s+ v9 k P
- server.begin();- ?* L; z0 X- v4 P4 Y& [
- }( `# ^; H" G. H- _' B
- }
' p" I3 F8 X8 H# R' W - void loop() {
/ m' }( O: r6 U y* [9 b1 x - server.handleClient();9 c& ^+ Z- d* w: P
- delay(1);: d: G- M- p+ S, ~' F. |
- }$ h1 o" _6 j& n, ?$ r! p
- String doGet(String url){
7 z. d+ Z" Z" R2 f0 G+ a - if ((WiFiMulti.run() == WL_CONNECTED)) {+ o5 l/ }& T2 w" [
- HTTPClient http;* A; w% q! d* }: t+ v4 E4 C
- Serial.println("[HTTP] begin...");
: E. q$ I0 ?( _6 h, Y+ K5 K/ g - if (url.startsWith("https")) {/ D& Q! @0 O s$ A C
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: | P' \1 H' q8 m
- } else {
6 t z' d' Y; Z: g( O e) a6 q9 b - http.begin(url);
( h. V, A5 N d5 P5 G8 x - }
- a# Y5 ]" i8 N3 G; R( t - Serial.println("[HTTP] GET...");/ h3 C% K2 P5 y9 `
- int httpCode = http.GET();' x5 f9 w" g) b% ?
- if (httpCode > 0) {
! ^- y4 D; g6 U$ ?! T0 o- S - Serial.printf("[HTTP] code: %d\n", httpCode);6 Z4 T$ \+ X+ I0 ^8 X
- if (httpCode == HTTP_CODE_OK) {/ b5 C# j; R4 t3 `% w3 X; P& c
- String payload = http.getString();
- ] s1 z1 @6 W z - Serial.println(payload);
9 C2 {4 [. h6 t - Serial.print("\r\n");
- A+ d9 W* q) S# o' @2 W# u - return payload;# W3 ~( A) t. A; r* m7 j
- }9 Y3 Y% o5 b; L: r1 x
- } else {. h. N( t3 u9 }' N g& w8 E
- Serial.printf("[HTTP] GET... failed, error: %s\n",& V8 x# y% W% @3 `+ H
- http.errorToString(httpCode).c_str());
3 v- n& b( t% ]* ?- Z/ [ Y* q y2 ^ - }
' b) Y1 I# P; f l1 W& U1 s - http.end();
7 y, @5 v: r3 Y* s r3 k! H - return "";
4 Z% o% h5 F4 \! [ - }
2 R# D% K: Y9 u' c - }4 n4 e$ @, {1 t9 J b9 F& D* r
- void mainAction() {
* b* t6 \% _/ B* W - // 发送请求
7 J( a* {& t2 Y6 {2 a/ `- x - doGet("http://google.cn");( u' q& g Y; v9 E9 `. |2 q" ]
- }
$ u. L7 L$ S& Q
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