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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), q. Y( _( \& W; D6 q. q$ B. I
- #include <ESP8266HTTPClient.h>
9 n! \* t0 }: Q - #include <ESP8266WiFi.h>& W4 @ e `2 l6 D X8 A- u
- #include <ESP8266WiFiMulti.h>
2 K7 T6 o) a- y - #include <ESP8266WebServer.h>
( _' Z& n0 O1 i9 G- H - #include <arduino.h>, r0 l7 r9 F! N1 m) c
- ESP8266WiFiMulti WiFiMulti;
' `4 e, t- b1 i. N, i! g - ESP8266WebServer server(80);; `, d. ~9 T7 L4 o; L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) N6 R; x1 c( o q, ~6 k/ U2 f9 c g - ADC_MODE(ADC_VCC);( u, i, v, |: q5 v6 @' y( q
- void setup() {
" O6 R! i- @1 g# h: `& c$ ? - Serial.begin(115200);2 W0 z5 a# K5 Y; A4 `$ Q; ?( p, p
- Serial.print("\r\n\n");
: i2 H. ?( K3 W: p - pinMode(2,OUTPUT);- y+ e2 `( C( {% \2 k) a
- // WIFI: q& s3 h# X9 h/ H* d4 Q- P7 H
- WiFi.mode(WIFI_STA);
) E/ P8 B5 b9 c1 j: w1 e - WiFi.hostname("Sparkle");
4 V0 ~/ d o: c) } - WiFiMulti.addAP("wifi ssid", "wifi password");
0 J. {- q( p& V0 K4 P: L - int tryNum = 15;" M+ a d1 G: N
- Serial.print("Connect WiFi");& x F& F3 \5 W; F! D/ }* |& B6 I2 A
- while (WiFiMulti.run() != WL_CONNECTED) {
0 O; c& G1 J X$ ?" e% Z9 u, Z - digitalWrite(2,0);
# a4 n5 X: X8 g2 b6 Y% q9 f3 M - delay(200);; Y4 U/ ^& X8 D# e3 G# M6 c
- digitalWrite(2,1);/ q$ V. L, h& Z( g0 D+ a
- delay(300);
" `9 ]6 _: o) O: @$ ~3 M" s' r - Serial.print(".");
( c Z; l2 E& A( [ - tryNum--;
) T, B/ X( J9 y3 `! D3 H& i* N - if (tryNum == 0) {
6 M8 Z4 z( R% D - // 1min
; W( L9 V) y7 s P) ^# k8 c9 h' K - // ESP.deepSleep(60e6); O' b! [/ ^9 S+ A/ ^8 ^
- ESP.deepSleep(0);
- Z; L- d0 \; Y0 h1 `$ x+ p - }
5 G. y% ~% v' d4 M& }$ I; o - }
. K' s+ i p2 C0 f" x) V - Serial.print("\r\n");
* b7 a ]6 H; ?, ]6 l. [% K5 w - digitalWrite(2,1);
) `6 j2 S/ M% L% L$ k5 I - Serial.print("IP address : "); z6 a5 u* y q1 C
- Serial.println(WiFi.localIP());* y- G# _. g! I: G+ G& O
- server.on("/", HTTP_GET, [](){
. f9 m9 C7 i& |* v - server.sendHeader("Connection", "close");' [( C4 }( U7 p6 A
- server.send(200, "text/html", serverIndex);& s L8 t+ \9 J
- });' n) h3 t- p1 l* W0 v: U
- server.on("/update", HTTP_POST, [](){
* g9 J% M: k/ i; f6 r2 s: b( ~# G+ P - server.sendHeader("Connection", "close");
9 U7 V( `, W f7 F( A5 U, [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
; v' L7 `7 m1 {8 g n9 E - ESP.restart();
6 W# M& N- G/ @( ^# |' X - },[](){
3 ]+ K, k$ ]7 G2 V( z( }2 U0 g - HTTPUpload& upload = server.upload();
" G1 b+ r2 j+ h. h) _7 b; L - if(upload.status == UPLOAD_FILE_START){. k6 d) ^) q9 \
- Serial.setDebugOutput(true);
' {3 @+ H6 A$ Z, f- g* J5 [% { - Serial.printf("Update: %s\n", upload.filename.c_str());
! \+ u& H8 C1 E4 k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 S1 i% O B% Q- ?/ X- o
- if(!Update.begin(maxSketchSpace)){6 A J _$ [+ I2 B/ U8 R
- Update.printError(Serial);) ] T2 Q% i9 q( `1 d3 d
- }
: g5 a1 g- ]5 ~, Z, B - } else if(upload.status == UPLOAD_FILE_WRITE){
. @! F& k( D) @1 M - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# |% J, `5 s" q) n' K
- Update.printError(Serial);
) x$ M8 ], C6 a) g- q/ ^ - }
~) ^3 `* L9 D. A$ Y; T - } else if(upload.status == UPLOAD_FILE_END){. q+ p- q9 m- Q% ^; u+ i% R; T
- if(Update.end(true)){
/ E- E# S) [# \ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);. K8 s; K: s) \
- } else {
, L% @) G. f3 H, j. J# Z- ?/ C - Update.printError(Serial);4 d2 V, V: b6 k* Q" y0 R% Z
- }
- L: D# P6 G( ~. m: W7 o7 g9 l - Serial.setDebugOutput(false);
! p- w, p6 u' C3 e( { - }
% f$ d4 R! F/ n* K/ A% \ - yield();8 i: W/ D5 o+ r6 O% N7 B
- });
' w& D9 [. E% |( |2 I) Y1 r - : x2 N0 C! v! s( [
- digitalWrite(2,0);
" j, b, u* ~& {. B* H' t8 F% k - mainAction();
4 Q3 W. A" i0 y - if (digitalRead(0)){
' H' \2 ~4 l7 t, ^; i0 j$ M o - ESP.deepSleep(0);
$ Z/ r7 O) j% w& r/ Q( [3 ^% a - } else {
" ^" L0 U) a6 I8 @0 @9 j7 d - server.begin();
7 k4 e: f7 V, D - }
* q% T1 v! H: u: y/ w: {! i - }
% s3 M& y1 m9 p3 l5 ?- D0 S& c - void loop() {
: I% k; }8 i) s1 n - server.handleClient();& Z+ G- B. l6 ]6 G
- delay(1);
4 S6 s% U5 U6 Z - }
- A. K P) n0 D5 c2 a: W. R$ ` - String doGet(String url){: Q6 {% @6 O$ _6 b" _
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) o; e! F: V4 l6 ? - HTTPClient http;8 F: ~1 B2 J8 h% J# U$ N" X2 [
- Serial.println("[HTTP] begin...");
2 S! W7 v- e6 @. y/ {* f; x& B - if (url.startsWith("https")) {
% O |( Z2 W- a0 ~/ N+ O0 p - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# \1 r$ ~& @) R& @. I - } else {
. O$ k$ d0 @' O: ]" l8 D - http.begin(url);# w; Q4 a- I4 c5 d
- } u* C8 Q3 ?( ?. q0 f0 Z
- Serial.println("[HTTP] GET...");
+ I: Q# X8 v+ n" d* E - int httpCode = http.GET(); X' ^$ r q% ?
- if (httpCode > 0) {
' |: _' w; f; I( h' @ - Serial.printf("[HTTP] code: %d\n", httpCode);
' V0 M0 J4 I! z. L. h - if (httpCode == HTTP_CODE_OK) {: G1 y; u# T1 u. B Q9 y9 X
- String payload = http.getString();
* S2 k; I' {5 x- Z" a - Serial.println(payload);
0 b( ~2 u/ }- F8 w2 h - Serial.print("\r\n");
9 f6 p" k4 ]1 D O - return payload;. A$ m: |3 Q c" j% L9 }
- }, j" O2 K! G% q
- } else {
" G$ j$ y/ x- U& F% c - Serial.printf("[HTTP] GET... failed, error: %s\n",
y4 R; t/ u9 x" R$ S" E( V - http.errorToString(httpCode).c_str());4 Q- V* W" f4 p4 ^
- }7 H; v8 i6 e* a; r& H
- http.end();" T2 l# G7 n# I7 c1 }8 ?) ~! i. g
- return "";
0 Y) B a8 u* z- t+ ?. `4 i4 d - }
# J- A$ [$ Y0 v& f1 G( |" x - }
- }: a3 w7 ^+ E9 `/ k8 l w" d - void mainAction() {% ^, S, m% z5 h) W- i
- // 发送请求" B/ z. i7 m( [0 W
- doGet("http://google.cn");
7 d% c9 N9 g5 c4 [7 `+ [ - }
" k" ?' L* E( F+ v" x4 m8 w$ _% u
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