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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)
/ a6 ^7 R" j+ R: X+ h- #include <ESP8266HTTPClient.h>7 [5 V* B" m7 C% l1 n
- #include <ESP8266WiFi.h>. \. \0 F5 Z5 @/ q8 h
- #include <ESP8266WiFiMulti.h>
8 Z- G% ]2 Y) t - #include <ESP8266WebServer.h>" e, x' y% X# p5 r; U0 h9 J$ `
- #include <arduino.h>3 V3 D: u6 Z* f) a: [% d! e+ i
- ESP8266WiFiMulti WiFiMulti;
6 P: F% s$ P1 L( Q% _ - ESP8266WebServer server(80);9 k+ x7 g' {+ Z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 S1 z0 h4 z# w5 a' T5 y
- ADC_MODE(ADC_VCC);2 {; t5 W9 p2 Q( E* ]" N
- void setup() {+ M2 x! O7 E2 h4 x1 K! ^- E3 {6 p
- Serial.begin(115200);% ^6 y# r/ C* G8 s. e3 [
- Serial.print("\r\n\n");
( J, B% g" \9 _+ j1 W - pinMode(2,OUTPUT);
) `! u7 ?$ A0 E - // WIFI
$ z3 t# H9 S2 }4 l7 p+ V1 F) N4 @ - WiFi.mode(WIFI_STA);8 ^4 v! q& D, G6 v* h% Z
- WiFi.hostname("Sparkle");
$ Q; P" t! i8 v- o8 ^ v% {% N - WiFiMulti.addAP("wifi ssid", "wifi password");
! c4 y, |& U2 i' H5 A - int tryNum = 15;
; e5 H9 @. M8 M+ S4 q7 X. `) w - Serial.print("Connect WiFi");
: h2 M+ Q# N( v% n) S - while (WiFiMulti.run() != WL_CONNECTED) {2 P- B; L |1 k2 b
- digitalWrite(2,0);
) U' A( k. o1 ?) A - delay(200);$ ]9 M' T- Y8 ^* ~
- digitalWrite(2,1);
" N1 v! u& l( |2 n: l - delay(300);
& ^* c2 }0 G1 _ - Serial.print(".");* E; M- G+ ~, Z& X
- tryNum--;
) q G% u+ q: K! T# | - if (tryNum == 0) {. x2 A0 G/ L8 E( I( P5 }$ G$ ]
- // 1min
/ G9 ~5 o3 d& M! a# r' X - // ESP.deepSleep(60e6);
+ L2 D, [2 Z4 l - ESP.deepSleep(0);- ?' E( e: O9 W% I( f: R8 i
- }' B- A! T, }9 b2 E+ B
- }: w+ g7 C7 X: E2 k# K
- Serial.print("\r\n");
' Q# M) `, \0 O) s; s& ] - digitalWrite(2,1);. i! W* Y, U- O: \# F" _# q
- Serial.print("IP address : ");
! Q# U, T: ?$ Y - Serial.println(WiFi.localIP());
' A7 ^" T" L, v/ r% P/ m6 z% \ - server.on("/", HTTP_GET, [](){
$ |/ |, J. m2 s P! G) D - server.sendHeader("Connection", "close");9 ]8 ?+ W6 v7 m9 S" y; ]) A! t0 g9 u
- server.send(200, "text/html", serverIndex);
G2 O0 w" n7 _2 E, e: h$ _7 E - });- j' `+ k, H, c$ g6 X( V
- server.on("/update", HTTP_POST, [](){9 }3 s. d) v/ P# E3 S
- server.sendHeader("Connection", "close");6 D' b2 S/ s6 h+ k+ a0 s* d& g
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% `; ?7 m# b4 K$ ?2 j - ESP.restart();
* C$ G3 x; a- c - },[](){
/ X# l1 |9 E* J7 C - HTTPUpload& upload = server.upload();
3 F' R1 L Q( ` - if(upload.status == UPLOAD_FILE_START){
8 s/ a$ _/ K' V- A6 N5 e$ n - Serial.setDebugOutput(true);
$ H* o! b# O/ u p; ?0 x - Serial.printf("Update: %s\n", upload.filename.c_str());
* g( w, ~$ j8 O) E' T( @# } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; U" z: U7 b4 u - if(!Update.begin(maxSketchSpace)){4 F1 B8 t) w2 o) D0 s& k; M
- Update.printError(Serial);
0 b* E, ^( V1 B( D \# \ - }+ c# |5 f! O9 s/ w
- } else if(upload.status == UPLOAD_FILE_WRITE){* ?$ E2 i) w+ V/ H( e$ G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 O5 u7 z* y3 |( Z2 R
- Update.printError(Serial);
$ l/ m7 H) h& ?5 y9 S4 u - }1 `0 {$ t4 \1 m0 K8 g/ f9 Y) f
- } else if(upload.status == UPLOAD_FILE_END){' v( |4 E, B6 T: h- \# J
- if(Update.end(true)){
# [$ \3 x7 }) O3 ~: w+ I" S# o - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) m; O) ?2 S/ R$ _- h& J; u
- } else {
9 x. ~# d- u$ e2 F' s. |2 R% n- d. Q8 u - Update.printError(Serial);
# k. b5 m% V2 ]# q; W! z - }
: R a# C) j, i! f/ E* G* Q V- B - Serial.setDebugOutput(false);
1 |) ?: v- l( Q% H. V, t - }5 F* g3 Q: ^) k: |* w* B( Q
- yield();# q+ R9 h- R* o% ^4 Q7 \# ]7 |
- });: K3 u! {. n: c% B
-
. m. |& [5 u. k, [ g" O$ c% ] - digitalWrite(2,0);; w* w, [. O8 Y6 W
- mainAction();, h" l* q* Y9 t6 @, h3 u2 @
- if (digitalRead(0)){
& [; w S* S2 _$ N - ESP.deepSleep(0);! S! a1 |1 Q3 |6 F0 d" {, w
- } else {4 f3 a5 ^$ I! I- g
- server.begin();
. | b5 x, y9 z. b$ V7 ~ - }
}" |, N7 f( ~) b8 h' J* X - }
, @% Z, k" E. J - void loop() {% w9 ?5 m! f3 Q5 e! ^' c
- server.handleClient();
/ s/ ^, ~* @) c! C* W) g. K8 H - delay(1);
p! ~# w/ V6 Y - }
; w" s* [+ |) c9 W6 C& b& k - String doGet(String url){4 u |9 p' `6 z+ r) u* k
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 D8 C3 i+ ?7 ` - HTTPClient http;
# C# n! y9 I% s2 z8 W/ _ - Serial.println("[HTTP] begin..."); O' R9 V/ V- `/ w) t
- if (url.startsWith("https")) {
3 r5 T+ z9 R, _0 M - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; A7 y' \ V8 \8 h: G
- } else {
$ o4 e. }4 E+ x# F7 j/ _' y& x - http.begin(url);3 h k( }. O6 ` ?% Q& P
- }
6 ?" D+ B# P$ J6 }+ A- Z: w' P7 ~7 V - Serial.println("[HTTP] GET...");9 A/ u1 `0 f" q; A) P
- int httpCode = http.GET();
+ J5 B. [! D2 W2 N! h( G - if (httpCode > 0) {
* }9 v+ o. l/ E/ h& O - Serial.printf("[HTTP] code: %d\n", httpCode);+ @, q+ _, e) s/ k& q
- if (httpCode == HTTP_CODE_OK) {
& ^4 s, b7 V2 B - String payload = http.getString();+ }6 [' g# A2 M9 S5 M
- Serial.println(payload);" v; i& f: |8 V8 l& |& c
- Serial.print("\r\n");) i% A) V9 M& }
- return payload;- }8 {: u6 E7 a5 o0 u$ o( p$ Q4 k2 w
- }
( H- H& M. n w2 H - } else {8 J3 M: m" O- T# X3 X5 J z
- Serial.printf("[HTTP] GET... failed, error: %s\n",
- ^' d+ [9 S/ d6 Y& [ - http.errorToString(httpCode).c_str());
% n3 k& y. ?7 m" w3 j - }# L2 r9 w1 T5 L, X" w" R
- http.end();( M6 w, L* s$ G- M! z2 m3 n2 t
- return "";+ c3 P0 C$ X9 z1 I2 H
- }
2 L9 d0 A$ H6 t8 V# p7 v8 W1 u - }
* ^+ L' V$ m/ d {$ [- H - void mainAction() {# t) f A( ~. [" p$ Z
- // 发送请求$ g% F" ^2 h A% Z
- doGet("http://google.cn");
) ~0 ^# Q0 v1 t8 F - }
! }# F- \; X! a8 v, H
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