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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)/ ^5 }$ f, @% |$ ]
- #include <ESP8266HTTPClient.h>
4 L( A5 w6 x1 L1 f( |8 f - #include <ESP8266WiFi.h>) L' B6 D: f5 d/ i8 H, \% t
- #include <ESP8266WiFiMulti.h>
$ R( N1 ^- ~! V$ H4 M! K9 ?# r/ a - #include <ESP8266WebServer.h>- O7 G- s( V% ]; g! Z E
- #include <arduino.h>
8 ?, O$ p, {0 z4 u. d - ESP8266WiFiMulti WiFiMulti;1 W8 U5 T k( u }
- ESP8266WebServer server(80); g: e0 L' U* ]1 ]. g4 U# f8 `
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& @/ B7 v% T0 ?5 T! h4 B9 s - ADC_MODE(ADC_VCC);1 j' o* [. x7 M* k& v+ R9 r
- void setup() {' s# t. t3 p9 B* X6 {
- Serial.begin(115200);
3 c5 W% v0 e2 R3 O( Z2 _4 ` - Serial.print("\r\n\n");
1 u* |" e( x0 l - pinMode(2,OUTPUT);
5 I; D T. y# ?/ n - // WIFI
) `) u/ y; t( ? v* X9 C. d - WiFi.mode(WIFI_STA);
( h+ A/ _4 P# P7 O - WiFi.hostname("Sparkle");$ T" a) Q3 ~7 t e
- WiFiMulti.addAP("wifi ssid", "wifi password");; U Z. h0 @/ `! h5 \& O- j# J
- int tryNum = 15;8 G3 g; z+ s: c
- Serial.print("Connect WiFi");; M! b( b4 L; n* a% w! E
- while (WiFiMulti.run() != WL_CONNECTED) {: @* ]! }/ _. z1 K& y. W2 J
- digitalWrite(2,0);
3 j. ?- m9 H1 o, M, O! g - delay(200);, z$ R. T0 D2 K7 H& ?0 ^
- digitalWrite(2,1);* d& E& T( X0 S4 m' E! Y8 z m; B) ]
- delay(300);
' v" j+ F: r. U- o5 t# R, a - Serial.print(".");
0 e) Y$ Y' Y( o - tryNum--;
# ^( @8 a/ ~9 m# V) x J! } - if (tryNum == 0) {
& w6 i/ b6 P4 W0 Z+ j2 K' t3 l - // 1min
2 e" R, m* M& n9 Q2 T - // ESP.deepSleep(60e6);' g. F) `3 U7 P8 k/ y
- ESP.deepSleep(0);
' g' Z9 c. B8 l2 f" b2 [: \" H, p& ?( r - }
- `5 C2 Y( d b - }
+ h7 o6 f4 D$ a2 \) ~3 u; } - Serial.print("\r\n");
5 D( N& R3 Q+ y: H" D3 k8 q$ t - digitalWrite(2,1);1 a; u, k+ `/ g% Y
- Serial.print("IP address : ");
7 h5 v+ \6 V5 s% s9 @$ a! { - Serial.println(WiFi.localIP());
/ g. \3 H" H! I2 Z8 N P4 @. m* s - server.on("/", HTTP_GET, [](){" r" D0 e+ a0 B2 Z, n8 h/ @% u
- server.sendHeader("Connection", "close");' S1 R5 }7 d4 ~6 U' n. O* O
- server.send(200, "text/html", serverIndex);6 i1 D1 _! t6 J
- });3 v0 c# {+ C% f+ e4 h4 }3 l" U
- server.on("/update", HTTP_POST, [](){8 p5 C) Z( k; i6 T; I. x7 |/ e: F
- server.sendHeader("Connection", "close");( g# M% j9 w0 B- U( {
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: D8 {3 r+ v) d# Z. `* o# h
- ESP.restart();
) E- c) T5 h$ o+ @ - },[](){
4 `7 g+ C6 A7 O8 F7 Q/ Z; c - HTTPUpload& upload = server.upload();, w9 p9 s% y8 q
- if(upload.status == UPLOAD_FILE_START){8 W6 W! z* H% v& `% m
- Serial.setDebugOutput(true);6 d! x+ u+ r4 M( a% F
- Serial.printf("Update: %s\n", upload.filename.c_str());
( b) M, a0 i: z6 o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; g& }+ i( n0 z' O+ D6 l
- if(!Update.begin(maxSketchSpace)){) Y0 g: x5 V2 F
- Update.printError(Serial);" R. z5 I9 B( c7 @5 A
- }
6 K9 L0 J$ B! H7 I - } else if(upload.status == UPLOAD_FILE_WRITE){, X9 l. b6 X8 a' J
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 @9 s" d& t3 c3 j5 l - Update.printError(Serial);
5 E. |; d! I0 i3 f x - }: X5 ^$ z& j+ {6 [ z; f$ G& h1 L! L6 |
- } else if(upload.status == UPLOAD_FILE_END){/ c6 p# p- e' J" i! ?
- if(Update.end(true)){
1 F' I1 l* w$ r - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# n1 J7 d1 y" G' J* n; ~8 ^
- } else {
" Y; `( Y3 x6 S/ ~! t - Update.printError(Serial);" E- b: z& }. K% d9 a/ [
- }
: }$ s4 V) B; D4 m' P$ V, V - Serial.setDebugOutput(false);
2 V b+ t" N5 | - }
2 K7 |$ s1 Z" w+ K$ M# E - yield();
. ~$ _1 r' F6 O% ?+ L* t - });
: D" E8 D: o7 p: v4 P - ) A L/ S* r9 m+ _
- digitalWrite(2,0);: O* @7 d( B0 g+ t( C8 ~" J, `
- mainAction();
" Y" Z) s3 a& j. D8 O/ Q# y - if (digitalRead(0)){. X6 r$ t- v: s( E/ Y5 s
- ESP.deepSleep(0);' ]7 Z3 ~' L N6 X
- } else {2 O3 {% t) l9 c
- server.begin();- c3 |, v9 Z" X% N
- }
1 e" r9 E, J+ b& J7 ?# U8 G - }" ]" u9 F1 Y3 y- L+ D+ K8 R# o2 Z
- void loop() {% b& l7 L$ C; k! h
- server.handleClient();2 l( i9 x. }: O7 U7 ]; |
- delay(1);
" f% w( g* [ A# g) t - }& [9 k$ J4 U- M9 E5 o! G0 `0 s
- String doGet(String url){3 U6 l' C; B( s! z9 I$ {
- if ((WiFiMulti.run() == WL_CONNECTED)) {
6 D( b- E- \9 t6 I. v! J: a - HTTPClient http;+ M2 S$ W" H2 z0 G" C$ k/ F, [
- Serial.println("[HTTP] begin...");
' d$ r/ `8 R: M - if (url.startsWith("https")) {0 V: l& I2 N) X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 Y5 H$ `9 h. J, W: k# J
- } else {
9 Y- T# p* m1 ^6 J" Y/ Y - http.begin(url);) _: w- Z9 |: @5 C
- }
3 U9 L' ^ h7 L b, @! J - Serial.println("[HTTP] GET...");
1 R4 y5 \% v0 F - int httpCode = http.GET();, ?" B- V' x: |0 C* s2 f2 Y* R/ D
- if (httpCode > 0) {
( w- Y6 a% }6 V - Serial.printf("[HTTP] code: %d\n", httpCode);" [+ b3 q# Y, F& q+ n
- if (httpCode == HTTP_CODE_OK) {& O0 [9 J' i% c% l+ _. O5 ?
- String payload = http.getString(); ~* t7 J) P$ d3 i: J
- Serial.println(payload);
6 ~& g' l* m* y. z - Serial.print("\r\n");) B. ^ G; B, S1 }) k
- return payload;
4 U7 @; K* D1 H4 ?0 W4 X- _ - }/ m) ^, |& Q: A$ E
- } else {5 _, z* m& X' l$ _& _
- Serial.printf("[HTTP] GET... failed, error: %s\n",) @, k9 N! P# R$ s1 ?! {
- http.errorToString(httpCode).c_str());
& D+ T* D# F& i# u9 n4 W# j - }7 h2 Y/ ]8 y4 j) p" E' \ Q
- http.end();
" ^0 J- u( u( Q2 }7 @ - return "";/ j* U# D, u) a+ j" \
- }
! m+ P' {+ _: H' H5 v3 U! b - }
# G2 m# M1 e! I - void mainAction() {# Y5 r4 s5 d( Q6 I/ i ]8 i. c
- // 发送请求
* E! @. R4 w8 _) ]0 T) L% q$ y - doGet("http://google.cn");$ D+ Q' `8 u# F, ^3 m2 F
- }" J- o# j* t# }8 I" x4 G- T; j8 U/ j
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