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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)2 m2 J' r2 q5 m7 d! V) q/ x% t% h
- #include <ESP8266HTTPClient.h>
( B" E- p3 m$ e7 q- C6 v1 P - #include <ESP8266WiFi.h>7 f) c2 H4 v) L( `# S0 y
- #include <ESP8266WiFiMulti.h>2 [. p( M$ Y$ o
- #include <ESP8266WebServer.h>9 P% I% {+ s. O9 \
- #include <arduino.h>3 `. h R6 }. S: O; W
- ESP8266WiFiMulti WiFiMulti;
8 L3 K# J4 D9 t: t$ j _ - ESP8266WebServer server(80);7 g5 K" N' }* E, _6 [4 z: g
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ K k' R4 f3 K" g7 p
- ADC_MODE(ADC_VCC);
, Z& G$ D: d3 ^$ W1 r" E - void setup() {
2 u6 F$ Z4 E* v- ?* X - Serial.begin(115200);+ S" m) x1 y" I% R% X) ?$ A
- Serial.print("\r\n\n");* y/ A- t6 ~5 z) ^
- pinMode(2,OUTPUT);
! B6 Q" J* e0 ~0 x - // WIFI
, p- k7 |: i0 o4 }' t* I - WiFi.mode(WIFI_STA);+ z6 L- t; @7 k: b; C
- WiFi.hostname("Sparkle");+ B- e; B, U% \7 _: a
- WiFiMulti.addAP("wifi ssid", "wifi password");( J K$ o# R3 r: P6 B% D/ M; z
- int tryNum = 15;
* Q' r; b, y' c; @. _" ?7 X7 n - Serial.print("Connect WiFi");' O) }7 F7 ^- t$ l6 o" F' L
- while (WiFiMulti.run() != WL_CONNECTED) {
0 D# o2 A. g! R8 z* @7 B } - digitalWrite(2,0);1 x4 O- Z5 X P# x
- delay(200);& V! Q' A- v5 N3 I X# |# Q
- digitalWrite(2,1);" @; i) v! N$ H7 k$ R, |) E
- delay(300);! ~) O$ ?% B3 V! W* V, }; ?/ h
- Serial.print(".");
$ }2 y2 m0 m4 g/ c( ^& i - tryNum--;- _/ l* w8 \2 g( }6 z3 H
- if (tryNum == 0) {
$ t) U1 ?0 f6 c2 H4 [2 D - // 1min
6 o" Q4 `, t. ~$ T8 g6 f0 ] - // ESP.deepSleep(60e6);' |# b1 r% |% ]+ m
- ESP.deepSleep(0);8 I+ |& C7 E* \" \5 h) P) d
- }
; {' j. `4 W9 W0 M5 y9 U# |+ c' } - }7 m. s; L7 q7 I
- Serial.print("\r\n");/ q: T/ M: M- }: S. X: X
- digitalWrite(2,1);+ y* E* _0 _* l( P
- Serial.print("IP address : ");- d( T6 n& J! ^) J( c! ?2 U
- Serial.println(WiFi.localIP());2 U* ~+ p5 y3 R, t% e
- server.on("/", HTTP_GET, [](){: f [, m( a' T* w ?
- server.sendHeader("Connection", "close");
6 D [( p4 L ~+ i6 p) v9 A& W - server.send(200, "text/html", serverIndex);8 A1 m* T' {/ y. {4 `* }- ?
- });
% V0 L b. S3 Z+ T5 G - server.on("/update", HTTP_POST, [](){
' A( a: k3 e( |% Q& H5 I6 M - server.sendHeader("Connection", "close");
2 k$ H7 E! Z# R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ r/ U+ ~$ S3 l9 j# M - ESP.restart();
) |5 ~" I5 a$ O. `! u: @ - },[](){
4 E' c0 ?/ v" J+ r# ^" [ - HTTPUpload& upload = server.upload();
5 D: M! ?: G, g6 K) X - if(upload.status == UPLOAD_FILE_START){
" m3 v Z9 d4 o( c# e - Serial.setDebugOutput(true);9 f, }6 V$ D+ z
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 t. @/ S7 Z+ P. \6 k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; u7 q, a" F' ?) ?' @$ @" n
- if(!Update.begin(maxSketchSpace)){- Q8 o/ F8 D$ p8 D5 o# m1 q
- Update.printError(Serial);
6 X2 Q8 g/ L* E; p: c - }
7 w6 K6 n/ \6 _ - } else if(upload.status == UPLOAD_FILE_WRITE){
, P2 i1 y8 W p; u/ h - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 ^4 T* }) p& H& E0 A. Y& w
- Update.printError(Serial);
0 _3 X. ]; ?3 j. i8 ]0 S - }( t0 X5 I- r. C) ?" T
- } else if(upload.status == UPLOAD_FILE_END){
- g. [: s' A- o0 Q0 B - if(Update.end(true)){
) F0 N" J; Z* `) |& | - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- F' z' d$ m$ t' C/ T - } else {
3 j5 e" k- S! ]7 \: D- e3 b - Update.printError(Serial);
; i9 s$ a6 M' r" z" ^% A - }
6 a- |' y& ^& G0 t7 {+ T* ? - Serial.setDebugOutput(false);
; x" @6 {5 y. n/ ?4 m- X: E& @4 \ - }
' ]0 S- M: i0 D) Q, A; ^0 c* a$ j8 V - yield();8 v: X/ Z) `# \2 j
- });
8 L) I6 b' e. j9 f4 Z& [/ M, U/ s - 4 _, g+ b" p W2 M+ h
- digitalWrite(2,0);2 T- w: v* O- W! C9 t. m
- mainAction();6 T2 r! j" C+ M
- if (digitalRead(0)){: I6 b) t; h, q5 K
- ESP.deepSleep(0);
2 ?/ A' y# r! L1 ~, i - } else {
* c$ }- z9 r2 Q) h% T - server.begin();
2 z' j* S k( h7 ]& Q+ r) j! j - }
: x2 f& R. O# \7 b) j - }
2 a. C7 ~! g0 j: f% Y - void loop() {
4 Q, z( B( I0 H' V8 d$ T" f - server.handleClient();
9 l& \5 `! g1 B - delay(1);9 K6 g4 d: O5 n9 I
- }
$ X6 G7 J7 Y% c! m! c3 T/ i" J - String doGet(String url){7 j, r Y; i& O7 b$ f5 q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 C& O6 G7 w1 ~2 { - HTTPClient http;
5 i: @$ H* W, N" a$ H9 l, U L5 H4 R - Serial.println("[HTTP] begin...");
0 r* b" k& m, ]% W5 V! D - if (url.startsWith("https")) {
* D3 S( V6 E% \. `, s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); j! z Z8 D+ s6 v4 ~
- } else {
0 z/ m& I4 L7 k6 O& d5 R# I - http.begin(url);
& N U. F8 D9 }2 @ Y s - } {* v* `$ c i0 e8 m
- Serial.println("[HTTP] GET...");; _( u$ }' _9 X! F ~1 H/ l' c
- int httpCode = http.GET();
3 y+ W7 w; B' z7 `6 R+ A - if (httpCode > 0) {
0 e2 g# j, ]& H5 R7 _% t - Serial.printf("[HTTP] code: %d\n", httpCode);0 p5 r2 D4 z. w' [: X- K
- if (httpCode == HTTP_CODE_OK) {
' q7 H E# f, V& P _ - String payload = http.getString();6 L( |; p# h( c# N& e( ]8 i
- Serial.println(payload);, J! @# i7 D. `5 c( @( A
- Serial.print("\r\n");1 }2 I/ z. L$ E
- return payload;2 e1 z s+ E. [
- }$ z3 |3 P4 ?4 @
- } else {
) h1 B0 K) v& x$ O, A1 a - Serial.printf("[HTTP] GET... failed, error: %s\n",
! d! w$ x3 q# S( ~: z/ A. @0 y - http.errorToString(httpCode).c_str());
$ B, s0 e" j. H2 i6 D! _ - }$ v" v" ~7 p1 R8 k9 @7 v8 L4 L
- http.end();
" K. u& N$ ?$ x - return "";( U+ H3 H. i5 \% ?9 o: z
- }" z; _8 o0 e( F" w; Y! [% I' E
- }+ B: |; o" j- o5 E7 J; y. E
- void mainAction() {
9 u* I- R: \$ b0 G4 K - // 发送请求" }5 n% G" s, Y& r$ Y9 Q
- doGet("http://google.cn"); A' l: y" A! g4 |- r w6 J
- }
3 I. ~$ ?9 s; `- P; ^! r5 Y7 z
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